Percentage Of Infection Research Articles

Integrated Approach for Management of Spondylodiscitis: Surgical and Medical Approach

Introduction: Spinal infections, constituting a small percentage of musculoskeletal infections, often necessitate surgical intervention combined with antimicrobial therapy in advanced stages for effective management and improved patient outcomes. The study aimed to share experiences in managing severe and complicated spondylodiscitis (SD) using a combined approach of antibiotics and surgery and offer recommendations to improve care for challenging SD cases. Methods: The study took place at J P Orthocare Hospital, Ahmedabad, Gujarat, India, focusing on SD patients admitted within a year. It included 21 patients undergoing SD surgery, where experienced spine surgeons performed debridement, histopathological examinations, and culture tests. Antibiotic treatments were based on culture reports and infection specialist recommendations. Neurological status, fusion status, graft position, and instrumentation alignment were monitored using standardized assessments and SPSS 20.0 for statistical analysis (p < 0.05). Result: The study revealed a male predominance (6:1 ratio) among patients, primarily from Ahmedabad district, with lumbosacral vertebral involvement being most common, particularly at L4-S5 (28.57%). Mycobacterium tuberculosis (Rifampin sensitive) was the most prevalent pathogen, followed by Methicillin-resistant Staphylococcus aureus (MRSA) and Pseudomonas. Transformational lumbar interbody fusion with bone graft was the most frequent procedure (28.58%), with patients typically discharged after 72 hours post-surgery after culture and sensitivity report obtained and starting antibiotic after consulting infection specialist. Conclusions: The combined surgical and medical treatment of severe SD enables effective debridement, rapid inflammation resolution, early mobilization, and shorter antibiotic courses. Both tuberculous and pyogenic SD showed improvement. A holistic strategy for multimorbid patients, addressing perioperative health concerns and ensuring extended follow-up, improves management results and patient welfare. Keywords: Spondylodiscitis, Antibiotics, Lumbar Interbody Fusion, Tuberculosis, Surgery

Biological effectiveness of Tebuconazole under three commercial names and Epoxyconazole for control of Karnal Bunt in the field

Commercial fungicides Opus, Tacora, Velficur, and Zoll, were evaluated in the field, to determine their biological effectiveness to control karnal bunt (Tilletia indica) of wheat. A completely randomized design was used with four replications. Twenty heads in each replication of experimental line KBSUS were inoculated during the boot stage with an allantoid sporidial suspension (10,000/mL). Commercial rates indicated in the containers of each product were followed. The first application was carried out ten days after inoculation (Zadoks stages 56-58), and the second one ten days later. Inoculated spikes were threshed by hand and the healthy and infected kernels were counted to determine the percentage of infection. Other variables evaluated were a thousand grain weight (g) and grain weight per plot (kg). The biological effectiveness of the products evaluated were Opus 95.1, Tacora 82.5, Velficur 76.1, and Zoll 59.2 %. The untreated inoculated check had a mean of 81.7 % infection. There were statistical differences for the products evaluated for level of infection after arcsin transformation (Tukey, p = 0.05), and the coefficient of variation was 8.30 %. The average a thousand grain weight per treatment was 38.3, 38.7, 38.6, and 39.2 g, for Opus, Tacora, Velficur, and Zoll, respectively, and 35.7 g for the untreated inoculated check, while the average grain weight per plot was 0.396 kg, 0.388, 0.371, and 0.375, respectively, and 0.291 for the untreated inoculated check. No phytotoxic effects of treatments applied to the wheat plant were observed.

AI powered detection and assessment of onychomycosis: A spotlight on yellow and deep learning

AI powered detection and assessment of onychomycosis: A spotlight on yellow and deep learning

Dermatophytes in skin, nails, and hair among the patients attending the outpatient department of Zliten Medical Center.

Background: Dermatophytes represent the most prevalent infections in the human body, primarily affecting the scalp, skin, and nails. Dermatophytes are classified into three genera: Trichophyton, Epidermophyton, and Microsporum. Materials and methods: A cross-sectional study was conducted in 60 clinically suspected cases of dermatophytosis irrespective of gender and from all age groups, attending the outpatient department of dermatology and Venereology at Zliten Medical Center. The study was conducted from April 2023 to March 2024. A pro forma document incorporating a structured questionnaire was completed. Skin, nail, and scalp scrapings were collected All specimens underwent microscopic examination for dermatophytes using (KOH) preparation. Positive results were further confirmed through fungal culture. Results: Dermatophytes were isolated and identified in 23 (38.3%) patients. dermatophytes infect concentrated in the group younger < 20 years at a rate of (69.6%) and was more predominant among males from females. tinea capitis and tinea ungiumm had the highest infection rate (43.5%) and (21.7%), respectively. The commonest isolate was Trichophyton violaceum. The highest percentage of dermatophytes infection was found in the scalp, at a rate of (47.8%). Conclusions: culture positive was (38.3%). females were less frequently affected than males, dermatophytes infect concentrated in the group younger < 20 years at a rate of (69.6%), T. capitis followed by T. ungiuum as predominant clinical type of dermatophytes and the commonest isolate was Trichophyton violaceum. The highest percentage of dermatophytes infection was found in the scalp, at a rate of (47.8%).

Surveillance of SARS-CoV-2 in Healthcare Workers Before and After COVID-19 Vaccination: A Cohort Study in a Primary Care Unit of Brazil.

Healthcare workers (HCWs) are at higher risk of SARS-CoV-2 infection. Viral surveillance for early detection of COVID-19 is a critical strategy to understand this population's infection dynamics and prevent transmission. The study examines SARS-CoV-2 infection and reinfection among HCWs vaccinated against COVID-19 working at a primary healthcare unit serving a disenfranchised community in Brazil. The study was conducted in Cidade Estrutural, Federal District, Brazil, between February and October 2021. Participants were interviewed and provided samples. A prospective open cohort study was used to analyze the frequency of SARS-CoV-2 infection and reinfection, and the vaccine-induced seroconversion. Nasopharyngeal swab specimen was collected from workers presenting with flu-like symptoms and subjected to RT-qPCR. Peripheral blood samples were also collected every 30 ± 2 days for eight months, starting from the day participants received their first dose of COVID-19 vaccine, and submitted to serological testing (IgM and IgG chemiluminescence). The frequencies of infection and reinfection (RT-qPCR positive results 90 days after the infection) were calculated along with their respective confidence intervals (95% CI). Of the 128 workers, 61 (47.65%; CI: 39.19-56.25) reported probable SARS-CoV-2 infection before vaccination and 50 (39.06%; CI: 31.04-47.71) had SARS-CoV-2 infection after vaccination, confirmed by molecular test. Reinfection was identified in seven workers (7/50, 14%; CI: 6.95-26.18) based on the 90-day interval between results. The serological data from the 128 workers during the cohort indicated that 68 (53.12%; CI: 44.5-61.5) had IgG antibodies and 46 had IgM antibodies (35.93%; CI: 28.14-44.54) against SARS-CoV-2. SARS-CoV-2 infection was common in 56% of the community health workers (CHWs), 50% of registered nurses, and licensed vocational nurses (33%). Following the COVID-19 vaccination, the percentage of infections among HCWs decreased from 47.83% to 4.35%. These results demonstrate that (i) approximately 40% of the workers were infected with SARS-CoV-2 in 2021 and (ii) reinfections confirmed by RT-qPCR occurred in 14% of the HCWs after vaccination. The results provide valuable insights into the circulation of SARS-CoV-2 among HCWs in a primary care unit serving a minoritized community.

Dressing Material With Halochromic Dye as an Information Source in Wound Healing Monitoring

Background: The percentage of clean-wound infection remains fairly high so far: 2% to 5%. Therefore, monitoring wound healing is a critical task in modern surgery.Objective: To develop and test a dressing material with halochromic dye in order to determine the suppuration of a clean wound of the skin and soft tissues.Material and methods: The experiment was conducted on 30 Wistar rats: clean wounds were formed and then covered with a dressing soaked in halochromic dye. During the experiment, we measured the pH of the wounds and wound area and determined the qualitative and quantitative composition of the wound microflora. Statistical analysis was conducted using the Wilcoxon test; the level of significance was taken at 0.05.Results: We found that the initial wound area was 253 (248; 257) mm2 and the surface pH, 5.80 (5.55; 5.90). Clean wounds covered with a dressing material were not treated with medication. It led to their infection and a change in the color of the dressing material on average on day 4 (4; 5) of the experiment. After removal of the dressing material, we noted that the pH of the wounds was 7.79 (7.68; 7.88) and the wound area, 238 (234.3; 242.5) mm2; the differences compared with the data on day 1 were statistically significant. When analyzing the degree of wound contamination after removal of the dressing material, we found that the wound contained aerobic and anaerobic microorganisms and microscopic fungi, the level of which statistically significantly exceeded the maximum permissible level, confirming development of the wound infection.Conclusions: The use of a dressing material with halochromic dye, which changes its color in response to the pH of the wound, facilitates timely detection of the development of the wound infection.

Molecular Detection of Haemonchus spp Parasite in Human in Babylon Province, Iraq

Stool samples of 100 human were collected the diagnosis of Haemonchus worm in Babylon province usied Microscopic examination by PCR assay. The human were classified into sub-groups according to age, locality and sex in order to study association of these risk factors with rate of infection. The results showed, by using (PCR) based on detection 18srRNA gene to Haemonchus worm human stool samples that the persons was infected with this worm , and the infection rate was (32%) The rate of positive cases, infection was the highest in Western Hamza district and it was (40%), followed Al-Musayyab district was (34.61%), and the rate in Al-Qassim a District was (30%), whereas in Al Mahaweel district it was (20.83%), The present study showed no significant impact of geographical variation. The infection rate of Haemonchus worm for human in age group (41-60) was (43.75%) while in age group (21-40) was (38.46%), in age group (11-20) was (26.66%), and in age group (< 10 years) was (20%), and the statistical analysis reveals that there was no significant (P>0.05) difference in the infection rate of parasite between age intervals. This current study concluded the rate of infected male with Haemonchus worm was (40%) and females was (27.69%) Through the above, we found that the percentage of infection in females was greater than males, when results statistical analyzed showed there are no significant effect in infected rate at (P>0.05) on sex. The study is the first in lraq to diagnosis the presence of Haemonchus worm in human in Iraq.

DynaCT biliary reconstruction via a 3D C-arm cholangiography system: clinical application in hepatolithiasis.

Dyna computed tomography (DynaCT) is an innovative clinical imaging tool used to obtain three-dimensional (3D) images of biliary structures via the Artis Zee DSA system (SIEMENS Company, Germany). DynaCT is a type of 3D cone beam computed tomography (CBCT) reconstruction produced from a two-dimensional (2D) cholangiography system by rotating the C-arm without moving the patient. The aim of this study was to evaluate the technical approach and application value of DynaCT to diagnosis hepatolithiasis and biliary stenosis. This was a retrospective single-centre series of 37 hepatolithiasis patients with tubes receiving one-step percutaneous transhepatic cholangioscopic lithotripsy (one-step PTCSL) between October 2021 and October 2022: twenty-one patients were guided by CT (CT group) and sixteen by DynaCT biliary reconstruction (DynaCT group). We compared DynaCT biliary reconstruction technology with computed tomography (CT) in the application of bile ducts. DynaCT biliary reconstruction was successfully performed in 37 patients. Biliary stenosis, including anatomy, morphology, and size, was visualized via DynaCT. Compared with the CT group, the DynaCT group was characterized by significantly more target biliary branches with stones (92 vs. 48, P < 0.05), a higher percentage of secondary stenosis (75.76% vs. 24.24%, p < 0.05), a greater percentage of biliary infection (37.5% vs. 9.5%, P = 0.041), a shorter overall stone clearance time (26.38 ± 13.49 vs. 52.67 ± 30.10, P = 0.001), and a lower rate of reoperation for residual stones (25.00% vs. 66.67%, P = 0.012). DynaCT had a lower contrast agent (25.61 ± 5.13 vs. 42.69 ± 11.15, p < 0.05). However, DynaCT increased radiation exposure (38.12 ± 10.59 vs. 25.79 ± 4.76, p < 0.05). There were no significant differences between the two groups regarding the clearance ratio of the calculus or several postoperative complications. DynaCT for biliary reconstruction has the potential to be a powerful evaluation tool for one-step PTCSL surgery and could lead to new possibilities for hepatobiliary surgery. DynaCT was used for the first time in patients with hepatolithiasis and biliary stenosis. Compared with CT, DynaCT for biliary reconstruction results in higher-quality 3D biliary, blood vessel and liver images. On the basis of the DynaCT biliary model, one-step PTCSL has the potential to improve the stone clearance ratio and shorten the stone clearance time and reoperation ratio.

Reduction of oxidative damage caused by Fusarium falciforme and Fusarium foetens in schefflera plants using chitosan nanoparticles loaded with l-proline or indole butyric acid

BackgroundRoot rot, wilt diseases, and rooting processes have been the major factors that constrain schefflera production. This study focuses on the impact of innovative applications of eco-friendly materials like chitosan nanoparticles loaded with l-proline or indole butyric acid to replace traditional chemical fungicides in controlling root rot and wilt diseases, as well as the vegetative propagation success of leafy stem schefflera cuttings.ResultsFusarium foeten (strain 1) and Fusarium falciforme (strains 2 and 4) were first identified as root rot and wilt pathogens of schefflera in Egypt based on morphological features and confirmed with molecular analyses. Fusarium foetens (strain 1) and F. falciforme (strain 2) have the most aggressive action, as the infection percentages significantly increased in the pathogenicity test. The disease incidence reached 38.88 and 44.44%, respectively, whereas the disease severity was 18.51 and 26.84%, respectively. Chitosan nanoparticles at a concentration of 25 mg/L were the most effective dose, leading to a significant reduction in disease incidence to 25.00%, disease severity to 4.17%, and playing a vital role in activating plant defense, which correlates well with improved growth characteristics. The novel strategy of L-proline loaded on chitosan nanoparticles (LP-CSNPs) application occupied the first rank at protective influence against root rot and wilt disease-induced oxidative stress, signaling a defensive function that was freelance verified. L-proline loaded on chitosan nanoparticles (LP-CSNPs) at 0.125–0.25 g/L had a significant impact on reducing the incidence and severity of root rot and wilt diseases, as well as improving photosynthetic pigments and free radical scavenging activities, which included strengthening plant defense and further validating the findings from the biochemical trait analysis. The TT biplot graph was an influential statistical tool to study the impacts of treatments on schefflera production and its attributes and to discover the interrelationships among them.ConclusionsApplying LP-CSNPs is one of the best techniques to manage schefflera root rot and wilt diseases, since it can be utilized as a growth stimulator and defense activator with sustainable increased efficiency.Graphical

Soil Mediated Helminthiasis: A Study on Neglected Tropical Disease in Wild Animals in Haryana

Background: Soil mediated/ transmitted helminthiasis (STH/SMH) is a neglected tropical disease and includes Ascarids, Trichuris and Hookworms, which prominently affects population living either in the low sanitary condition or in close proximity with the animals. Recent years have witnessed elevation in the Trichuris infection, with India ranking first globally. Variety of factors including low sanitation, close contact with animals, increased man and wild conflict contribute towards STH. However, co-relation of STH/SMH infection from wildlife have not been studied. Methods: The study was conducted for a period of 1 year from August, 2021 to September, 2022. Trichuris infection was present in 72 out of 131 carcasses of wild animals with prevalence rate of 35%. The prevalence percentage of Trichuris infection in different sub categories of wild animals was calculated. Seasonal prevalence rate was calculated with increased cases reported in summer season followed by monsoon. Additionally, fecal samples, worms and intestinal samples for further studies were collected. Result: Wild animals act as bridge for transmission of various zoonotic diseases. However, zoonotic potential of parasitic diseases are neglected in wild animals with no systematic literature. Based on our study we illustrate that wild animals hold considerate potential plausibly demonstrating an iceberg phenomenon. Wildlife is an essential component in the epidemiology of many, if not most, zoonoses, wildlife should be taken into account in the risk analysis framework.

Risk factors for COVID-19 among healthcare workers: a hospital-based cohort study in Portugal

Abstract Background Healthcare workers (HCWs) have an increased risk of transmitting SARS-CoV-2 infection to frail patients and are also at higher risk of exposure. Hence, it is essential to understand the risk factors for infection of HCWs to limit adverse events occurring in healthcare facilities. This study aimed to identify risk factors for symptomatic COVID-19 infection among HCWs in the hospital context. Methods We used data from a hospital-based cohort study followed between December 2020 and January 2022 in three central Portuguese hospitals. Following the study protocol, RT-PCR testing was performed whenever an HCW reported any symptom compatible with COVID-19. Characteristics of infected (at least one positive RT-PCR with symptoms) versus non-infected HCW were compared using the Chi-square test. Results A total of 3034 HCWs were followed during 13 months and 533 had a positive test for SARS-CoV-2. A higher percentage (&amp;gt; 40 %) of infections were in individuals without a primary vaccination scheme. Other than age, no differences were found regarding individual characteristics: infected HCWs had a higher percentage of individuals aged 18 to 50 years old compared to the non-infected HCWs (74.7 % versus 66.2 %, p &amp;lt; 0.001). Regarding work functions, no differences were found for self-report of working in direct contact with COVID-19 patients. Additionally, the percentage of HCWs who declared to perform tracheal intubation procedures was similar in infected versus non-infected HCWs (6.2 % versus 8.9 %, p = 0.080). Conclusions Infected HCWs were younger than the non-infected. HCWs working in direct contact with patients or performing tracheal intubations didn’t exhibits increased rates of infection suggesting the success of preventive measures and other standard procedures in limiting infection transmission in healthcare facilities. Key messages • HCWs working in direct contact with COVID-19 patients or performing tracheal intubations were not the most infected personnel. • Preventive measures and other standard procedures were successful in limiting COVID-19 infection transmission in healthcare facilities.

Response of host Indian Musa germplasm against artificially induced root lesion nematodes (Pratylenchus coffeae)

Under greenhouse condition, the host response of fifty-nine banana genotypes (Musa spp.) from the Eumusa section to the root-lesion nematode (Pratylenchus coffeae) was assessed. In a factorial completely randomized design (FCRD) with five replications, healthy banana suckers of the diploid and triploid accessions were planted in cement pots. Uninoculated controls were included in the experiment as comparison to study the sensitivity of the genotypes. Two varieties (Pisang Lilin and Nendran) with known reaction to lesion nematode were also included as reference clones because of their resistance and susceptibility to P. coffeae. Banana accessions maintained in the pots were inoculated with infective juveniles of root-lesion nematode, P. coffeae at 45 days after planting at the rate of 400 nematodes/pot. Ninety days after inoculation, the plants were harvested to observe the response of the different banana genotypes to P. coffeae. Data were recorded on plant growth (plant height, girth at the base, number of standing leaves, number of roots and weight of the root system), root damage assessment (percentage of infected roots and percentage necrosis) and nematode reproduction. When inoculated with nematodes, the reduction in plant growth attributes was relatively higher in genotypes that were susceptible. The reduction in growth characters viz., plants height, number of roots and root fresh weight were maximum in the diploid genotypes Manguthamng (26.80, 27.2, 33.0 %) and Manohar (25.70, 29.2, 35.2 %) and in the triploid genotypes Kaali, Rajthali, Digjowa, Saapkal, Cheenichampa, Dasaman, Borchampa, Jahaji, Manjahaji, Barjahaji and Sabri when inoculated with Pratylenchus coffeae. Even after nematode inoculation, root investigations showed that resistant and tolerant genotypes had greater numbers of roots as well as high fresh and dry weight of roots. Root and soil population of nematodes assessed at 90 days after inoculation indicated very high population buildup of Pratylenchus coffeae (&gt;28) in diploids Manguthamng and Nendrapadathi and in triploids Jahaji, Manjahaji, Saapkal, Borchampa, Therahaw-1163 and 1164, Ankur-I and Bersain. The rate was the lowest (&lt;9) in the diploid genotypes Kanai Bansi, Kechulepa, M.balbisiana, Athiakol, Bhimkol and Aittakola and in the triploids Karthobiumtham and Ankur-II. The results of the experiment showed that the diploids Musa balbisiana (BB), Aittakola (BB), Bhimkol (BB), Kechulepa (BB), Kanai Bansi (AA) and Athiakol (BB) and the triploid genotypes Kachkel (ABB), Karthobiumtham (ABB) and Ankur-II (ABB) were resistant to Pratylenchus coffeae.

Serotype-specific epidemiological patterns of inapparent versus symptomatic primary dengue virus infections: a 17-year cohort study in Nicaragua.

Dengue is the most prevalent mosquito-borne viral disease and a major public health problem worldwide. Most primary infections with the four dengue virus serotypes (DENV1-4) are inapparent; nonetheless, whether the distribution of symptomatic versus inapparent infections by serotype varies remains unknown. Here, we present (1) the evaluation of a DENV1-4 envelope domain III multiplex microsphere-based assay (EDIII-MMBA) to serotype inapparent primary infections and (2) its application leveraging 17 years of prospective sample collection from the Nicaraguan Pediatric Dengue Cohort Study (PDCS). We analysed primary DENV infections in the PDCS from 2004 to 2022 detected by inhibition ELISA (iELISA) or RT-PCR. First, we evaluated the performance of the EDIII-MMBA for serotyping with samples characterised by RT-PCR or focus reduction neutralisation test. Next, we analysed a subset of inapparent primary DENV infections in the PDCS with the EDIII-MMBA to evaluate the epidemiology of inapparent infections. Remaining infections were inferred using stochastic imputation, taking year and neighbourhood into account. Infection incidence and percentage of inapparent, symptomatic, and severe infections were analysed by serotype. Between Aug 30, 2004, and March 10, 2022, a total of 5931 DENV-naive participants were followed in the PDCS. There were 1626 primary infections (382 symptomatic, 1244 inapparent) detected by iELISA or RT-PCR over the study period. The EDIII-MMBA demonstrated excellent overall accuracy (100%, 95% CI 95·8-100) for serotyping inapparent primary DENV infections when evaluated against gold-standard serotyping methods. Of the 1244 inapparent infections, we analysed 574 (46%) using the EDIII-MMBA. We found that the majority of primary infections were inapparent, with DENV3 exhibiting the highest likelihood of symptomatic (pooled odds ratio compared with DENV1: 2·13, 95% CI 1·28-3·56) and severe (6·75, 2·01-22·62) primary infections, whereas DENV2 was similar to DENV1 in both analyses. Considerable within-year and between-year variation in serotype distribution between symptomatic and inapparent infections and circulation of serotypes undetected in symptomatic cases were observed in multiple years. Our study indicates that case surveillance skews the perceived epidemiological footprint of DENV. We reveal a more complex and intricate pattern of serotype distribution in inapparent infections. The substantial differences in infection outcomes by serotype emphasises the need for vaccines with balanced immunogenicity and efficacy across serotypes. National Institute of Allergy and Infectious Diseases (National Institutes of Health) and Bill & Melinda Gates Foundation. For the Spanish translation of the abstract see Supplementary Materials section.

Histological and histopathological structural changes in the skin of the Basal Cells Carcinoma patients

Background: Basal Cell Carcinoma (BCC) is the most common type of skin carcinoma and is considered an epidemic disease due to its increasing frequency in many countries. The most important problem of BCC is local invasion It grows in a “silent” way into immediately adjacent tissue. It rarely metastasizes. The early tumors are commonly small, translucent or pearly, raised and rounded areas located on a few dilated, superficial vessels. There are six subtypes of BCC that include nodular, pigmented, superficial, morphea form, cystic. The most important risk factor for basal cell carcinoma is exposure to UV-radiation. Outdoor workers with a long history of work-related UV-exposure are at increased risk of developing BCC. Other risk factors include family history of skin carcinoma, light skin phototypes, advanced age. Objective: The current study investigated pathological and histological changes in tissue sections to identify the factors contributing to the infection frequency. Patients and Methods: Thirty-three BCC patients' samples have been collected from the main care center at al-Baquba Teaching Hospital of Diyala Province, Iraq. All patient groups were clinically diagnosed as BCC by dermatologists. Results: The study showed macroscopic and microscopic histological changes. An ulcerated macroscopic appearance of the lesion was shown. The tumor lesions are located on the face. It was noted that the percentage of patients was higher in men than women and higher in light skin than dark skin. The study also showed that the age group 66-74 years had a higher infection percentage, while the lower percentage was of the age group &gt; 83 years. Conclusion: These findings pave the way for future research endeavors aimed at prevention, early detection, and targeted treatment strategies for this prevalent skin carcinoma.

Bacillus endophytic strains control Fusarium wilt caused by Fusarium oxysporum f. sp. lycopersici in tomato cv. Perinha.

Fusarium wilt is one of main phytopathology attacking tomato (Solanum lycopersicum L.) plantations in Brazil. Plant rhizosphere and endophytic beneficial microorganism are well known as plant growth promoters and biocontrol agents. The present study aims to evaluate the potential of different Bacillus strains as biocontrol agent to Fusarium oxysporum f. sp. lycopersici Race 3 strains; and also as plant growth promoting bacteria on Solanum lycopersicum cv Perinha. Different in vitro and greenhouse experiments were carried out to evaluate the direct and indirect bacterial-fungus antagonism, and they inoculation effects on plant traits. In vitro direct, metabolites, and volatile antagonism analysis demonstrated that B. toyonensis BR 10491(FORT 02) presented a broad antagonism to all tested race 3 FOL strains while B. megaterium BR 10466 (FORT 12), B. aryabhattai BR 10494 (FORT 25), B. stratosphericus BR 10438 (FORT 29) and B. cereus BR 10493 (FORT 113.1) strains showed significant antagonistic activity for at least two applied methods. Greenhouse pot experiments demonstrated a significant BCA effect of FORT 113.1 and FORT 02 against FOL Race 3 Fus 1302 strain during different tomato development stages (seedling, vegetative, and reproductive). Bacillus cereus (FORT 113.1) showed significantly higher shoot and height fresh weight, Chlorophyll a and Chlorophyll b content, stomata conductance, water use efficiency, and also a lower xylem infection percentage during vegetative and reproductive stages. Antioxidant enzymatic components analysis demonstrated a synergic effect of Fusarium and Bacillus inoculation, leading to a higher superoxide dismutase (SOD), catalase (CAT), and ascorbate peroxidase (APX) activity. In conclusion, the results suggest that strain FORT113.1 could be considered as a good candidate for production of new biofungicide with high potential to augment the existing biocontrol strategies.

Central artery pulse pressure, not central arterial stiffness impact on all-cause mortality in patients with viral pneumonia infection

ObjectivesCOVID-19 viral pneumonia can result in increased arterial stiffness, along with cardiac and systemic inflammatory responses. This study aimed to investigate the association between arterial stiffness, inflammation severity, and all-cause mortality in patients with COVID-19.MethodsIn this study, anthropometric data, pneumonia infection severity, and blood tests were analyzed. Arterial stiffness was assessed using the non-invasive assessment indices, including arterial velocity pulse index (AVI) and central arterial pulse pressure (CAPP). Infection volumes and percentages for the whole lungs, most lobes, and most segments were extracted from CT images using artificial intelligence-based quantitative analysis software. The relationship between arterial stiffness, central hemodynamics, and all-cause mortality was investigated.ResultsIn multivariable Cox regression analysis, high CAPP was significantly associated with all-cause mortality (hazard ratio: 0.263, 95% CI, 0.073–0.945, p = 0.041). Whole lung infection percentages were independently associated with high CAPP, with an area under the curve (AUC) of 0.662 and a specificity of 89.09%.ConclusionsHigh CAPP, but not high AVI, demonstrated independent prognostic value for all-cause mortality in patients due to COVID-19 pneumonia infection. Evaluating this parameter could help in risk assessment and improve diagnostic and therapeutic strategies in viral pneumonia infections.

Detection of Toxoplasma Gondii IgG Antibody in Patients Infected with Toxoplasma by ELISA

Aim the current study to diagnosis of the IgG antibody to Toxolasma gondii, serum samples isolated from patients humans and healthy reviewers to AL-Diwaniyah hospital and different laboratories. 90 samples were collected from human infected with Toxoplasmosis including 60 samples of patients and 30 samples of healthy (control). The results of this study showed that concentration of the IgG antibody in patients infected with T.gondii were 47.43 while the concentration in control were 8.14 and the percentage of infection in patients (24/60) (40%) and in control (4/30) (13.33%). The results showed that IgG antibody found in both patients and control but its concentration in patients was higher this indicates a high concentration of IgG antibody with toxoplasmosis.

Streptomyces fradiae Mitigates the Impact of Potato Virus Y by Inducing Systemic Resistance in Two Egyptian Potato (Solanum tuberosum L.) Cultivars

In this study, the impact of culture media filtrate of QD3 actinobacterial isolate on two potato cultivars, Spunta and Diamond, infected with potato virus Y (PVY) was investigated. Various parameters, including infection percentage, PVY virus infectivity, disease severity scoring, PVY optical density, photosynthetic and defense-related biochemical markers, enzymatic profiling, phenolic compounds, proline content, salicylic acid levels, and growth and yield parameters, were assessed to elucidate the potential of the QD3 actinobacterial isolate culture filtrate in mitigating PVY-induced damage. The physiological and biochemical characteristics of the QD3 actinobacterial isolate, including its salinity tolerance, pH preferences, and metabolic traits, were investigated. Molecular identification via 16S rRNA gene sequencing confirmed its classification as Streptomyces fradiae QD3, and it was deposited in GenBank with the gene accession number MN160630. Distinct responses between Spunta and Diamond cultivars, with Spunta displaying greater resistance to PVY infection. Notably, pre-infection foliar application of the QD3 filtrate significantly reduced disease symptoms and virus infection in both cultivars. For post-PVY infection, the QD3 filtrate effectively mitigated disease severity and the PVY optical density. Furthermore, the QD3 filtrate positively influenced photosynthetic pigments, enzymatic antioxidant activities, and key biochemical components associated with plant defense mechanisms. Gas chromatography‒mass spectrometry (GC‒MS) analysis revealed palmitic acid (hexadecanoic acid, methyl ester) and oleic acid (9-octadecanoic acid, methyl ester) as the most prominent compounds, with retention times of 23.23 min and 26.41 min, representing 53.27% and 23.25%, respectively, of the total peak area as primary unsaturated fatty acids and demonstrating antiviral effects against plant viruses. Cytotoxicity assays on normal human skin fibroblasts (HSFs) revealed the safety of QD3 metabolites, with low discernible toxicity at high concentrations, reinforcing their potential as safe and effective interventions. The phytotoxicity results indicate that all the seeds presented high germination rates of approximately 95–98%, suggesting that the treatment conditions had no phytotoxic effect on the Brassica oleracea (broccoli) seeds, Lactuca sativa (lettuce) seeds, and Eruca sativa (arugula or rocket) seeds. Overall, the results of this study suggest that the S. fradiae filtrate has promising anti-PVY properties, influencing various physiological, biochemical, and molecular aspects in potato cultivars. These findings provide valuable insights into potential strategies for managing PVY infections in potato crops, emphasizing the importance of Streptomyces-derived interventions in enhancing plant health and crop protection.

Microbiology of periprosthetic infections following implant-based breast reconstruction surgery: a multicentric retrospective study.

Implant-based breast reconstruction (IBR) is the predominant breast reconstruction technique post-mastectomy, with bacterial infections being a significant complication affecting patient recovery and quality of life. The following study aimed to determine the microbiological features of the causative agents responsible for breast implant infections, with more attention paid to the comparative analysis of Gram-positive and Gram-negative bacteria and their presentation. We conducted a retrospective analysis of 214 patients who presented with periprosthetic infection and underwent implant removal following implant-based breast reconstruction at Humanitas Research Hospital and Istituto Europeo di Oncologia between January 2018 and March 2024. The study revealed that Gram-positive bacteria were more prevalent, with Staphylococcus species, particularly Staphylococcus aureus, being the most isolated pathogen in both institutions (∼39.96%). In contrast, Gram-negative bacteria were less frequent, with a higher proportion of these pathogens being multi-resistant strains. A significant difference was observed (p = 0.007), indicating that individuals with normal BMI have a higher prevalence of Gram-positive infections (88.46%), whereas obese and overweight patients had higher proportions of Gram-negative infections (23.53% and 28.89%, respectively). In addition, smoking status was also significantly associated with pathogen distribution (p = 0.032), with active and past smokers being related to higher percentages of polymicrobial infections. Furthermore, positive prophylactic MSSA/MRSA swabs were significantly more associated with Staphylococcus aureus infections compared to those with negative results (p = <0.001). Gram-positive bacteria, especially Staphylococcus species, dominate the microbiological landscape of implant-based breast reconstruction (IBR) infections. Our findings provide insights into this critical issue, facilitating a more precise choice of empiric antibiotic treatment and prevention strategies. This analysis underscores the necessity for prophylactic protocols and therapeutic approaches tailored to the predominant bacterial groups. Further research is needed to explore long-term trends and resistance mechanisms to improve patient management.

Changing paradigm of scrub typhus infection in children: A study from a tertiary care center of Eastern India

Background: Scrub typhus, a zoonotic disease, is transmitted to humans by the bite of larval trombiculid mite. Keeping in view the morbidity and mortality associated with undiagnosed cases (due to both lack of specific diagnostic tests and ignorance about the disease), the disease deserves a special mention. Aims and Objectives: The aims and objectives of the study were to assess complications and atypical manifestations of scrub typhus fever in this subpopulation and to assess the prognosis of patients presenting with atypical manifestations/complications. Materials and Methods: This is a longitudinal observational study on the basis of clinical and laboratory evidence at Department of Pediatrics, Calcutta-National-Medical College and Hospital, Kolkata, West Bengal, from March 2021 to February 2022. Children between &gt;28 days and &lt;12 years with atypical manifestations of scrub typhus who were scrub immunoglobulin (Ig)M positive (Serum and/or cerebrospinal fluid) were included in the study. Results: Of the 120 scrub typhus IgM-positive patients admitted in 1 year, complications present in 35%. These patients developed encephalitis, encephalomyelitis, neurological deficits, myocarditis, disseminated intravascular coagulation, acute kidney injury, atypical pneumonia, acute respiratory distress syndrome, acute encephalitis syndrome (23.8%), myocarditis with/without heart failure (14.3%), and multi-inflammatory syndrome in children with/without severe acute respiratory syndrome coronavirus 2 IgG (14.2%). There is a statistically significant association between the duration of fever at admission and pediatric intensive care unit (PICU) admission, the longer the fever duration at admission, the higher the rate of complications and thus PICU admission. Conclusion: Scrub typhus infection has expanded its various forms, presenting in various atypical manifestations alongside the common clinical features. Multiple cases of multiorgan involvement in the form of multi-inflammatory syndrome and hemophagocytic lymphohistiocytosis have been reported in the background of COVID-19 infection, alongside a significant percentage of scrub typhus infection reported in infancy. Thus, early detection is important to start intervention.