High Risk Of Infection Research Articles

Visible-Light Cross-Linkable Multifunctional Hydrogels Loaded with Exosomes Facilitate Full-Thickness Skin Defect Wound Healing through Participating in the Entire Healing Process.

The management of severe full-thickness skin defect wounds remains a challenge due to their irregular shape, uncontrollable bleeding, high risk of infection, and prolonged healing period. Herein, an all-in-one OD/GM/QCS@Exo hydrogel was prepared with catechol-modified oxidized hyaluronic acid (OD), methylacrylylated gelatin (GM), and quaternized chitosan (QCS) and loaded with adipose mesenchymal stem cell-derived exosomes (Exos). Cross-linking of the hydrogel was achieved using visible light instead of ultraviolet light irradiation, providing injectability and good biocompatibility. Notably, the incorporation of catechol groups and multicross-linked networks in the hydrogels conferred strong adhesion properties and mechanical strength against external forces such as tensile and compressive stress. Furthermore, our hydrogel exhibited antibacterial, anti-inflammatory, and antioxidant properties along with wound-healing promotion effects. Our results demonstrated that the hydrogel-mediated release of Exos significantly promotes cellular proliferation, migration, and angiogenesis, thereby accelerating skin structure reconstruction and functional recovery during the wound-healing process. Overall, the all-in-one OD/GM/QCS@Exo hydrogel provided a promising therapeutic strategy for the treatment of full-thickness skin defect wounds through actively participating in the entire process of wound healing.

Dog ecology and rabies control including canine vaccination coverage: Impacts from a survey in Madagascar.

Rabies virus (RABV; species Lyssavirus rabies) is causing one of the oldest zoonotic diseases known to mankind, leading to fatal encephalomyelitis in animals and humans. Despite the existence of safe and effective vaccines to prevent the disease, an estimated 99% of human rabies deaths worldwide are caused by dog-mediated rabies with children at the highest risk of infection. Rabies has been endemic in Madagascar for over a century, yet there has been little research evaluating local knowledge and practices impacting on the rabies control and prevention. Thus, this study was undertaken to better understand the dog ecology including canine vaccine coverage and to assess knowledge and practices of dog owners and veterinarians. A cross-sectional study was conducted among 123 dog-owning households in thirteen fokontanys in Mahajanga from July 4 to September 13, 2016. Single and multi-member dog-owning households in the study area on the day of the interview were eligible for inclusion and purposively selected with the support of a local guide. The survey included a household questionnaire capturing information on the dog's demographics, husbandry practices, knowledge and practices towards rabies and its control measures; the dog ecology questionnaire collected dog characteristics, vaccination status and husbandry practices. All households that reported a dog bite incident, were invited to participate in a dog bite questionnaire. In addition, direct observations of roaming dogs were conducted to assess dog population demographics and to document behavioural characteristics. Two veterinarians were purposively selected and took part in an interview during the survey period, providing information on rabies control activities, including dog-care practices in the area. Descriptive and inferential data analyses were performed using Epi Info version 7.1.5.0 (CDC Atlanta, USA). We recorded a total of 400 dogs, of which 338 (84.5%) were owned amongst 123 households. More than half (67.8%) of owned dogs were between 1 to 5 years old and 95.6% were kept for guarding purposes. 45% of the surveyed dogs had free access to roam outside the premises. The majority (85.4%) of dog owners were knowledgeable that a dog bite could potentially transmit RABV to humans. 19 dog bites were reported and of these 73.6% were caused by the owner's or a neighbour's dog. In 6 of the 19 cases, children between 7 and 15 years of age were the victims. Dog vaccination coverage against rabies was 34% among owned dogs. Of the participants aware of a veterinarian, the majority (55/82) indicated that they accessed veterinarian services at irregular intervals. The main obstacles to vaccinations cited by dog owners were limited financial resources and difficulty accessing veterinary care. This study contributes to enhanced understanding of the dog ecology including canine vaccine coverage as well as knowledge and practices of dog owners in Madagascar. Most dogs in the study area were accessible for preventive vaccination through their owners, however only one third of the investigated canine population was vaccinated against rabies. Concerted national efforts towards rabies prevention and control should aim to address financial challenges and access to veterinary services.

MICROBIOLOGICAL STUDY OF ENDODONT ARISING AGAINST THE BACKGROUND OF PREVIOUS COVID-19

Justification. In our previous study, bacterioscopy was used to analyze the contents of the root canals of teeth in patients who had been ill with COVID-19. The presence of coccal flora was revealed in all cases (100%) and in 89 cases (76.1%) elements of yeast-like Candida fungi were recorded. Based on the data obtained, the expediency of conducting a microbiological examination of the endodonts in this group of patients in order to further study their physico-chemical properties and correct the treatment regimen for gangrenous chronic pulpitis and aggravated forms of periodontitis was determined, which determined the relevance of this study.The aim of the study was to identify the features of the mycotic flora of the endodonts in patients who had previously undergone COVID–19.Materials and methods. A bacteriological study of the contents of the root canals was conducted in patients who had previously been ill with a new coronavirus infection at different times, with a diagnosis of "exacerbation of chronic periodontitis", "chronic gangrenous pulpitis", "acute purulent periodontitis" in order to identify fungi of the genus Candida in the root canal system of the tooth, which was taken during mechanical treatment with a sterile endodontic instrument (n=49).Results. This bacteriological examination of the contents of the patients' endodonts not only confirmed the bacterioscopy data, but also concretized the previously obtained results. In the final study, black Candida Albicans colonies were observed in 95.92% of cases. No growth of Candida Albicans colonies was observed in 2 cases (4.08%).Conclusion. The study showed that in the treatment of similar patients, it is advisable to take into account the high risk of infection of the tissues of the periodontal complex with fungi of the genus Candida. It is advisable to supplement the standard protocols of endodontic treatment with physical exposure, for example, laser radiation, or additional drug exposure with antifungal drugs.

Interleukin-1β Polymorphisms Are Genetic Markers of Susceptibility to Periprosthetic Joint Infection in Total Hip and Knee Arthroplasty

Periprosthetic joint infections (PJIs) are serious complications of prosthetic surgery. The criteria for the diagnosis of PJI integrate clinical and laboratory findings in a complex and sometimes inconclusive workflow. Host immune factors hold potential as diagnostic biomarkers in bone and joint infections. We reported that the humoral pattern-recognition molecule long pentraxin 3 (PTX3) predicts PJI in total hip and knee arthroplasty (THA and TKA, respectively). If and how genetic variation in PTX3 and inflammatory genes that affect its expression (IL-1β, IL-6, IL-10, and IL-17A) contributes to the risk of PJI is unknown. We conducted a case–control study on a Caucasian historic cohort of THA and TKA patients who had prosthesis explant due to PJI (cases) or aseptic complications (controls). Saliva was collected from 93 subjects and used to extract DNA and genotype PTX3, IL-1β, IL-6, IL-10, and IL-17A single-nucleotide polymorphisms (SNPs). Moreover, the concentration of IL-1β, IL-10, and IL-6 was measured in synovial fluid and plasma. No association was found between PTX3 polymorphisms and PJI; however, the AGG haplotype, encompassing rs2853550, rs1143634, and rs1143627 in IL-1β, was linked to the infection (p = 0.017). Also, synovial levels of all inflammatory markers were higher in cases than in controls, and a correlation emerged between synovial concentration of PTX3 and that of IL-1β in cases only (Spearman r = 0.67, p = 0.004). We identified a relationship between rs2853550 and the synovial concentration of IL-1β and PTX3. Our findings suggest that IL-1β SNPs could be used for the early identification of THA and TKA patients with a high risk of infection.

Intraoperative Hypertonic Saline Irrigation Preventing Seroma Formation in the Treatment of Axillary Bromhidrosis.

Subcutaneous seroma formation (SF) is commonly seen after axillary bromhidrosis surgeries and its treatment can be challenging and long. Current prevention methods are not consistent, and the treatment includes repeated aspirations and drains, both are associated with higher risk for infections. The purpose of this article is to present a novel and simple technique of intraoperative hypertonic saline irrigation (IHSI) to axillary bromhidrosis subcutaneous dead space, which prevents postoperative SF and enables early drain removal due to reduced secretions. From 2015 to 2022, we performed the intraoperative irrigation of the cavity through normal saline in 100 patients with primary axillary bromhidrosis. Through an incision approximately 3 cm long at the central axillary crease, the entire subcutaneous tissues containing apocrine glands were initially dissected with straight scissors within the axillary area, and then, the undermined apocrine glands were removed with curved scissors. The skin was defatted to become a full-thickness skin flap. Any suspected hemorrhagic spots were immediately coagulated electrosurgically. Negative pressure drains were placed, and intraoperative irrigation of the cavity through the drains with 20 ml of NaCl 0.9% or NaCl 10% left at site for 10 min applies different saline solutions in the same patients. The volumeofdrainage on the 1st postoperative day was 6.54±0.36 mL for the group B, which was significantly less than 15.23±0.42 mL for the group A (p < 0.05). The time of drain removal for the group B was 24 h, which was shorter than 48 h for the group A. In group B, 4 percent of axillae showed significant SF postoperatively, which was lower than the 20 percent of axillae associated with the group A (p < 0.05). The rate of incision infection for the group B was 2 percent, which was significantly lower than the 6 percent of axillae in the group A (p < 0.05). Two percent of axillae showed skin edge necrosis postoperatively in the group B, which was lower than the 10 percent of axillae associated with the group A (p < 0.05). IHSI enhances adhesion formation and reduces secretion rate in subcutaneous dissection space after axillary bromhidrosis surgeries, therefore enables early drain removal and prevents SF, incision infection and skin edge necrosis. As a result, reducing the pain of patients, decreasing inconveniency and cost saving of multiple outpatient visits or additional surgery. This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .

Factors associated with cardiac implantable electronic device-related infections, New South Wales, 2016-21: a retrospective cohort study.

To quantify the rate of cardiac implantable electronic device (CIED)-related infections and to identify risk factors for such infections. Retrospective cohort study; analysis of linked hospital admissions and mortality data. All adults who underwent CIED procedures in New South Wales between 1 January 2016 and 30 June 2021 (public hospitals) or 30 June 2020 (private hospitals). Proportions of patients hospitalised with CIED-related infections (identified by hospital record diagnosis codes); risk of CIED-related infection by patient, device, and procedural factors. Of 37 675 CIED procedures (23 194 men, 63.5%), 500 were followed by CIED-related infections (median follow-up, 24.9 months; interquartile range, 11.2-40.8 months), including 397 people (1.1%) within twelve months of their procedures, and 186 of 10 540 people (2.5%) at high risk of such infections (replacement or upgrade procedures; new cardiac resynchronisation therapy with defibrillator, CRT-D). The overall infection rate was 0.50 (95% confidence interval [CI], 0.45-0.54) per 1000 person-months; it was highest during the first month after the procedure (5.60 [95% CI, 4.89-6.42] per 1000 person-months). The risk of CIED-related infection was greater for people under 65 years of age than for those aged 65-74 years (adjusted hazard ratio [aHR], 1.71; 95% CI, 1.32-2.23), for people with CRT-D devices than for those with permanent pacemakers (aHR, 1.46; 95% CI, 1.02-2.08), for people who had previously undergone CIED procedures (two or more v none: aHR, 1.51; 95% CI, 1.02-2.25) or had CIED-related infections (aHR, 11.4; 95% CI, 8.34-15.7), or had undergone concomitant cardiac surgery (aHR, 1.62; 95% CI, 1.10-2.39), and for people with atrial fibrillation (aHR, 1.33; 95% CI, 1.11-1.60), chronic kidney disease (aHR, 1.54; 95% CI, 1.27-1.87), chronic obstructive pulmonary disease (aHR, 1.37; 95% CI, 1.10-1.69), or cardiomyopathy (aHR 1.60; 95% CI, 1.25-2.05). Knowledge of risk factors for CIED-related infections can help clinicians discuss them with their patients, identify people at particular risk, and inform decisions about device type, upgrades and replacements, and prophylactic interventions.

Proton pump inhibitors associated with severe COVID-19 among two-dose but not three-dose vaccine recipients.

Proton pump inhibitors (PPIs) may increase the risk of COVID-19 among non-vaccinated subjects via various mechanisms, including gut dysbiosis. We aimed to investigate whether PPIs also affect the clinical outcomes of COVID-19 among vaccine recipients. This was a territory-wide cohort study of 3272286 vaccine recipients (aged ≥18years) of ≥2 doses of either BNT162b2 or CoronaVac. Exclusion criteria included prior gastrointestinal surgery, immunocompromised status, and prior COVID-19. The primary outcome was COVID-19, and secondary outcomes included COVID-19-related hospitalization and severe infection (composite of intensive care unit admission, ventilatory support, and/or death). Covariates include age, sex, the Charlson Comorbidity Index, comorbidities, and concomitant medication use. Subjects were followed from index date (first dose of vaccination) until outcome occurrence, death, additional dose of vaccination, or March 31, 2022. Exposure was pre-vaccination PPI use (any prescription within 90days before the index date). Propensity score (PS) matching and a Poisson regression model were used to estimate the adjusted incidence rate ratio (aIRR) of outcomes with PPI use. Among 439154 PS-matched two-dose vaccine recipients (mean age: 65.3years; male: 45.7%) with a median follow-up of 6.8months (interquartile range: 2.6-7.9), PPI exposure was associated with a higher risk of COVID-19 (aIRR: 1.08; 95% confidence interval [95% CI]: 1.05-1.10), hospitalization (aIRR: 1.20; 95% CI: 1.08-1.33), and severe infection (aIRR: 1.57; 95% CI: 1.24-1.98). Among 188360 PS-matched three-dose vaccine recipients (mean age: 62.5years; male: 49.0%; median follow-up: 9.1months [interquartile range: 8.0-10.9]), PPIs were associated with higher infection risk (aIRR: 1.11; 95% CI: 1.08-1.15) but not other outcomes. Although PPI use was associated with a higher COVID-19 risk, severe infection was limited to two-dose but not three-dose vaccine recipients.

Main Partner Relationships and the HIV Care Cascade: Examining the Predictive Utility of Sexual Agreements, Partner Concordance, and Drug Use Among Sexual Minority Men Living With HIV in the USA.

The past 15 years have seen increasing attention to relationship factors among sexual minority male (SMM) couples at high risk for HIV infection. Research has largely focused on HIV prevention outcomes. Outcomes relevant to SMM living with HIV have received relatively less attention. This study evaluated associations between relational covariates (relationship status, sexual agreements, and seroconcordance) and HIV care cascade outcomes (having a current antiretroviral therapy [ART] prescription, ART adherence, viral load (VL) testing, and VL detectability) above and beyond cannabis and stimulant drug use. Adult SMM (n = 36,874) living with HIV in the USA were recruited between November 1, 2017 and March 15, 2020 through social networking applications. They completed a cross-sectional survey online. Nonmonogamous SMM with serodiscordant partners were most likely to have an ART prescription. Those with seroconcordant partners (regardless of sexual agreements) were least likely to be adherent. While relational covariates were not associated with VL testing, SMM in nonmonogamous relationships with serodiscordant partners were significantly more likely to have an undetectable VL. Those in monogamous relationships with seroconcordant partners were significantly less likely to have an undetectable VL. SMM with seroconcordant partners and monogamous sexual agreements may experience diminished interpersonal motivation for HIV care engagement. HIV care cascade retention messages that emphasize the prevention of onward transmission may have limited relevance for these SMM. Novel intervention strategies are needed to enhance HIV care outcomes in this population, ideally ones that incorporate attention to drug use.

Clinical characteristics of liver transplant recipients with COVID-19 and analysis of risk factors for the severe disease.

Liver transplant (LT) recipients were at a high risk of infection during the coronavirus disease 2019 (COVID-19) pandemic. Our purpose was to compare the clinical characteristics of severe and non-severe groups of LT recipients with COVID-19, and to analyze their risk factors for severe disease. 79 LT recipients with COVID-19 were divided into a non-severe group (n = 60) and a severe group (n = 19), and differences in clinical characteristics, laboratory tests, and chest computed tomography (CT) performance were analyzed. Logistic regression was used to identify risk factors with severe COVID-19. Receiver operating characteristic (ROC) curves were plotted and the area under curve (AUC) values were calculated to assess the predictive value for severe COVID-19. Age was statistically different (p < 0.001) between the two groups. The difference in neutrophil-to-lymphocyte ratio (NLR), serum creatinine (Scr), D-dimer, urea, C-reactive protein (CRP), lactate dehydrogenase (LDH), and the number of lung segments involved in inflammation between the two groups were statistically significant (p < 0.05). The results revealed that age (OR = 1.255, 95% CI 1.079-1.460), NLR (OR = 1.172, 95% CI 1.019-1.348), and Scr (OR = 1.041, 95% CI 1.016-1.066) were independent risk factors for severe COVID-19. The ROC results showed that high values for age, NLR and Scr predicted severe COVID-19, with AUC values of 0.775, 0.841 and 0.820, respectively, and 0.925 for the three factors combined. Advanced age, and elevated NLR and Scr are independent risk factors for severe COVID-19 in LT recipients.

Real-life use of letermovir prophylaxis for cytomegalovirus in heart transplant recipients.

Cytomegalovirus (CMV) remains the predominant opportunistic infection following solid organ transplantation (SOT). While valganciclovir is the drug of choice for CMV prophylaxis, its utility can be compromised due to the risk of cytopenia. Letermovir, a novel agent approved for CMV prophylaxis in allogeneic hematopoietic stem cell transplant recipients and high-risk kidney transplant recipients, exhibits reduced toxicity. This study aims to present the practical application of letermovir as both primary and secondary prophylaxis against CMV in heart transplant recipients (HTR). In this observational, retrospective, single-center study, we included all consecutive adult HTRs from June 2020 to January 2022 who were administered letermovir for CMV prophylaxis. We documented instances of CMV breakthrough infections, side effects related to letermovir, changes in neutropenia following the switch from valganciclovir to letermovir, and any drug interactions with the immunosuppressive regimen. The study comprised 10 patients: two received primary prophylaxis with letermovir due to a high risk of CMV infection (donor-positive, recipient-negative serostatus), and eight received it as secondary prophylaxis following a CMV infection. The median duration of letermovir administration was 8 months (range 3-12 months). No CMV breakthrough infections were reported while on prophylaxis. However, three patients experienced CMV breakthrough infections after discontinuing letermovir prophylaxis (30%). No significant side effects were observed, although one patient reported digestive intolerance. Among the nine patients on tacrolimus, six needed reduced doses after switching to letermovir. This real-life study appears to support the effectiveness of letermovir prophylaxis in HTR. Nonetheless, the risk of CMV infection post-treatment cessation is notable. Further drug monitoring and research on the efficacy of letermovir for CMV prophylaxis in SOT patients is warranted.

COVID-19 in Lung Transplant Recipients: A Report on 10 Recent Cases

Due to immunosuppression, transplant recipients are at higher risk of infections with SARS-CoV-2 and worse clinical outcomes than immunocompetent hosts. Furthermore, lung transplant patients represent a special group among solid organ recipients, since pneumonia is the main manifestation of COVID-19. However, data on the course of disease and the changes in morbidity and mortality during the course of the pandemic are limited. In our pulmonary rehabilitation clinic, we treat patients shortly after lung transplant as well as long-term transplant patients. Over the last almost 4 years of pandemic, we witnessed several COVID-19 infections in lung transplant patients in our clinic as well as patients who acquired an infection beforehand. In this paper, we aim at retrospectively describing a series of recent COVID-19 cases in our clinic, looking at the clinical course of disease and outcomes in lung transplant patients.

Prognostic Value of Hyperglycemia and Insulin Resistance Among Patients with Confirmed COVID-19 Infections at Admission to the Alexandria Fever Hospital, Egypt.

Background: The interaction between COVID-19 infection, hyperglycemia, and insulin resistance (IR) may lead to poor outcome. Methods: This prospective study included 100 adult participants without diabetes attending Alexandria Fever Hospital with confirmed COVID-19 infections. They were classified into four groups according to disease severity using World Health Organization (WHO) criteria. Demographic and clinical parameters were collected. Laboratory investigations were obtained. Another follow-up fasting plasma glucose (FPG) value was measured after 3 months in cured patients. Results: Admission FPG, follow-up FPG, lipid profile, markers of IR, and inflammation were significantly higher in severe and critical cases than in mild and moderate cases with increasing values with increased severity. Furthermore, these parameters were significantly higher in died cases compared with cured cases. Admission FPG, TyG index, and homeostatic model assessment (HOMA)-IR showed significant positive correlations with follow-up FPG. Admission FPG was the only independent mortality predictor in multivariate analysis (P = 0.027) with 1.7-folds increased mortality risk with each 10 mg/dL increments. Values exceeding 117 mg/dL, 2.2, and 6.33 for admission FPG, HOMA-IR, and Fasting Insulin Resistance Index, respectively, were able to predict mortality in the studied sample. Conclusions: These results will help in identifying patients at high risk of severe infection and death at admission and take early actions to improve outcome.

Insights into Nipah Virus: A Review of Epidemiology, Pathogenesis, and Therapeutic Advances

Emerging as a WHO priority pathogen, Nipah virus (NiV) – an RNA virus within the Paramyxoviridae family – first ignited outbreaks in 1998 Malaysia. Closely related to Hendra virus, NiV continues to threaten South and Southeast Asia. A zoonotic threat, Nipah virus (NiV) jumps from its natural reservoir, fruit bats, to pigs and then humans. This BSL-4 threat, with no cure or shield, compels us to harmonise the voices of humans, animals, and the environment in a One Health symphony to prevent future outbreaks. A 2018 Chinese study identified populations at high risk for Nipah virus infection are Fruit farmers, traders, palm wine brewers, Cattle herders, especially pig farmers and Tourists. Nipah virus exhibits remarkable zoonotic versatility, with transmission pathways between humans and animals varying based on geography. Factors such as diverse livestock breeding practices, local eating habits, and the interplay with the natural reservoir - fruit bats - contribute to this fascinating mosaic of infection routes. Unravelling these complexities is crucial for designing effective control strategies tailored to specific regions. Following exposure to the Nipah virus (NiV), symptoms typically appear within two weeks, ranging from 4 days to 2 months. Fever, headache, dizziness, and vomiting are common initial signs, potentially progressing to severe encephalitis. A promising development in the fight against Nipah virus emerges as the National Institute of Allergy and Infectious Diseases (NIAID) initiates an early-phase clinical trial for an investigational vaccine.

Care Provided to the Umbilical Cord Stump by a Group of Mothers from Luanda

Care provided to the umbilical cord stump differs greatly depending on the country, region, culture, and caregivers. This care normally occurs at home and is usually provided by women in the family or close friends while the knowledge grounding such care is not always based on scientific evidence but on beliefs transmitted from generation to generation. Many of these cultural care practices conflict with those based on scientific knowledge as inappropriate substances or procedures expose newborns to a high risk of neonatal tetanus and infection. Hence, this study’s objective was to identify care practices provided to the umbilical cord stump by mothers who delivered in the Lucrécia Paim Hospital. A qualitative study was conducted, and the study setting was Lucrécia Paim Hospital, Luanda, Angola. A total of 29 mothers participated in the study. Data were collected through semi-structured interviews, which were recorded and transcribed verbatim. Sample size was determined by reaching data saturation. Thematic analysis was used to analyze data. The results reveal three themes: 1) How to care for a umbilical cord stump; 2) The objectives of providing care to the umbilical cord stump; and 3) People to whom mothers turn for guidance. The mothers use alcohol and other substances/products, in accordance with folk knowledge, to facilitate disinfection and to cause the umbilical cord stump to drop off more quickly. Most mothers learn how to care for the umbilical cord stump within their families, also learning from folk knowledge as disseminated in the society. Such knowledge is highly valued by these mothers; only a few learned how to provide care from healthcare workers. The results also show that healthcare professionals do not provide guidance on how mothers should care for the newborn’s umbilical cord stump.

Current State of Canine Heartworm in Portugal.

The favourable geo-climatic conditions in Portugal have made it highly conducive to the development of Dirofilaria immitis in dogs, leading to its identification as an endemic region. This nematode is rapidly spreading across Europe, particularly in northeastern countries. The objective of this study was to provide an updated assessment of the prevalence of this disease in Portuguese dogs, analysing the results in relation to epidemiological and geo-environmental factors, and to identify potential risk factors. A total of 1367 dogs from all continental and insular districts were included in the study and tested for D. immitis antigens. The overall prevalence was found to be 5.9%. It was observed that the disease is spreading northward, with previously unaffected districts now reporting cases, and that the prevalence in coastal districts exceeded that of inland ones. Notably, the Aveiro district exhibited a significant increase in D. immitis prevalence, while in certain districts such as Setúbal, Santarém, Madeira, or Faro, a stabilisation or decrease in prevalence was noted. Furthermore, outdoor and older dogs were found to be at a higher risk of infection. No positive cases were detected in the Azores. Most of the infected dogs were located in areas of high and medium risk of infection. This study underscores the importance of implementing pharmacological prophylaxis, vector control strategies, and public awareness programs to control the spread of this zoonotic disease.

Assessing Syphilis transmission among MSM population incorporating low and high-risk infection: a modeling study

Assessing Syphilis transmission among MSM population incorporating low and high-risk infection: a modeling study

Rates of severe neutropenia and infection risk in patients treated with deferiprone: 28 years of data

AbstractPatients treated with deferiprone for transfusional iron overload may experience idiosyncratic drug–induced neutropenia (IDIN) that may put them at risk of infection. The purpose of this analysis was to examine the rates of severe IDIN and risk of serious infections at different absolute neutrophil counts (ANC) levels in patients treated with deferiprone. Events of severe IDIN (ANC < 0.5 × 109/L) and associated serious infections from clinical trials and postmarketing setting were analyzed by 3 discrete ANC levels: group 1, 0.2 × 109/L to 0.5 × 109/L; group 2, 0.1 × 109/L to 0.199 × 109/L; group 3, <0.1 × 109/L. In clinical trials, 22 events of severe IDIN were observed (group 1, n = 9; group 2, n = 3; group 3, n = 10); total deferiprone exposure was 1990.26 patient-years; and rates of severe IDIN per 100 patient-years were 0.45 in group 1; 0.15 in group 2; and 0.50 in group 3. All serious infections were in group 3 (3/10 [30.0%]). In the postmarketing setting, 176 events of severe IDIN were reported (group 1, n = 65; group 2, n = 20; group 3, n = 91); total deferiprone exposure was 111 570.24 patient-years; and rates of severe IDIN per 100 patient-years were 0.06 in group 1; 0.02 in group 2; and 0.08 in group 3. Rates of serious infection were 7.7% (5/65) in group 1; 10% (2/20) in group 2; and 13.2% (12/91) in group 3. Our findings suggest that in patients receiving deferiprone, ANC <0.2 × 109/L carries a high risk of serious infections, consistent with the recent neutropenia guidelines that agranulocytosis with ANC <0.2 × 109/L is associated with a high risk of serious infections.

Efficiency of an algorithm for the prevention of sternal infection after cardiac surgery in children under 1 year of age: A single-center retrospective study

BackgroundSternal infection is one of the most challenging complications to manage after heart surgery. The aim of our study is to evaluate the effectiveness of a developed algorithm for preventing sternal infection in pediatric patients after surgery for congenital heart disease (CHD). MethodsWe conducted a single-center study examining the treatment of 478 children with CHD. Patients were divided into 2 groups, taking into account the application of a developed management algorithm. A multivariate logistic regression analysis was used to identify the factors influencing the development of sternal infection following heart surgery using median sternotomy. ResultsA developed algorithm was applied in 308 children. In total, there were 16 cases of sternal infection (3.34 %) across both groups. Deep wound infection developed in 6 patients (1.26 %). Sternal infection developed in 2 children (0.65 %) in the first group (in which the algorithm was applied) and 14 children (8.2 %) in the second group. Deep sternal infection developed in 1 patient in the first group (0.33 %) and in 5 patients in the second group (2.94 %). As a result, perioperative risk factors as postoperative resternotomy (OR 23.315; p < 0.001), delayed sternal closure (OR 9.087; p = 0.003), development of acute renal failure (OR 5.322; p = 0.018) were associated with increased risk of infection and application of the developed algorithm resulted in a significant reduction in risk (OR 0.032; p < 0.001). ConclusionThe suggested method for the prevention of sternal infection has significantly reduced the incidence of sternal infection after cardiac surgery in children less than 1 year of age. In patients with moderate to high risk for surgical site infection, surgeons can enhance wound healing and prevent wound infections with simple, inexpensive, and readily available tools and techniques. Surgical aspects, topical use of antibiotics, prevention of peripheral vasoconstriction, maintenance of normal oxygen delivery rates, and an individual approach to intensive care are essential.

COVID-19 Vaccine Hesitancy Among People Living with HIV: A Systematic Review and Meta-Analysis.

Vaccine hesitancy is one of the top 10 threats to global health, which affects the prevalence and fatality of vaccine-preventable diseases over the world. During the COVID-19 pandemic, people living with HIV (PLWH) may have higher risks of infection, more serious complications, and worse prognosis without the protection of the COVID-19 vaccine. A systematic review and meta-analysis aiming to evaluate the prevalence of COVID-19 vaccine hesitancy among PLWH was conducted using PubMed, Embase, and Web of Science databases for studies published between January 1, 2020, and August 31, 2022. The pooled prevalence with a corresponding 95%CI of COVID-19 vaccine hesitancy among PLWH was reported. Subgroup analysis was conducted to explore variation in prevalence across different categories. 23 studies with a total of 19,922 PLWH were included in this study. The prevalence of COVID-19 vaccine hesitancy among PLWH was 34.0%, and the influencing factors included male, influenza vaccination experience, and a CD4 count of more than 200 cells/mm3. Subgroup analysis did not identify significant causes of heterogeneity but showed that the prevalence of COVID-19 vaccine hesitancy among PLWH varies by study period, region, and race. Although all PLWH are recommended to receive the COVID-19 vaccine, a large proportion of them remain hesitant to be vaccinated. Therefore, governments and relevant institutions should take specific measures to encourage and promote vaccination to improve the coverage of the COVID-19 vaccine among PLWH.

Evaluation of the effects of Artemisia Annua L. and Moringa Oleifera Lam. on CD4 count and viral load among PLWH on ART at Mbarara Regional Referral Hospital: a double-blind randomized controlled clinical trial

BackgroundInitiation of ART among people living with HIV (PLWH) having a CD4 count ≤ 350cells/µl, produces poor immunological recovery, putting them at a high risk of opportunistic infections. To mitigate this, PLWH on ART in Uganda frequently use herbal remedies like Artemisia annua and Moringa oleifera, but their clinical benefits and potential antiretroviral (ARV) interactions remain unknown. This study examined the impact of A. annua and M. oleifera on CD4 count, viral load, and potential ARV interactions among PLWH on ART at an HIV clinic in Uganda.Methods282 HIV-positive participants on antiretroviral therapy (ART) with a CD4 count ≤ 350cells/µl were randomized in a double-blind clinical trial to receive daily, in addition to their routine standard of care either; 1) A. annua leaf powder, 2) A. annua plus M. oleifera, and 3) routine standard of care only. Change in the CD4 count at 12 months was our primary outcome. Secondary outcomes included changes in viral load, complete blood count, and ARV plasma levels. Participants were followed up for a year and outcomes were measured at baseline, 6 and 12 months.ResultsAt 12 months of patient follow-up, in addition to standard of care, administration of A. annua + M. oleifera resulted in an absolute mean CD4 increment of 105.06 cells/µl, (p < 0.001), while administration of A. annua plus routine standard of care registered an absolute mean CD4 increment of 60.84 cells/µl, (p = 0.001) compared to the control group. The A. annua plus M. oleifera treatment significantly reduced viral load (p = 0.022) and increased platelet count (p = 0.025) and white blood cell counts (p = 0.003) compared to standard care alone, with no significant difference in ARV plasma levels across the groups.ConclusionA combination of A. annua and M. oleifera leaf powders taken once a day together with the routine standard of care produced a significant increase in CD4 count, WBCs, platelets, and viral load suppression among individuals on ART. A. annua and M. oleifera have potential to offer an affordable alternative remedy for managing HIV infection, particularly in low-resource communities lacking ART access.Trial registrationClinicalTrials.gov NCT03366922.