Antimicrobial Sensitivity Profile Research Articles

Antimicrobial Susceptibility of Methicillin-resistant Staphylococcus Aureus and Methicillin-sensitive Staphylococcus Aureus in a Pediatric Tertiary Care Hospital in Southern India

Objectives: To determine the current antimicrobial sensitivity profile of MRSA and compare it with the antimicrobial sensitivity of MSSA (Methicillin Sensitive Staphylococcus aureus) Material and Methods: Antimicrobial resistance in Staphylococcus aureus is a global public health concern. Methicillin-resistant Staphylococcus aureus (MRSA) is often resistant to the many classes of antibiotics compared to the methicillin-sensitive Staphylococcus aureus (MSSA). Five hundred and fifty S. aureus isolates obtained from clinical samples of pediatric patients were studied to determine the difference in the antimicrobial susceptibility between MRSA and MSSA. Results: Out of 550 S. aureus isolates, 59.3% were MSSA, and 40.7% were MRSA. The antimicrobial sensitivity to ciprofloxacin, gentamicin, clindamycin, erythomycin, tetracycline of MSSA was 26.4% , 93.6%, 81.5%, 61.2%, 95.4% respectively, and that of MRSA was 4.9%, 56.2%, 58%, 31%, 89.8% respectively. Conclusion: Antimicrobial sensitivity to ciprofloxacin, gentamicin, clindamycin, erythromycin, and tetracycline were significantly higher in MSSA than in MRSA.

Staphylococcus aureus: changes in antimicrobial sensitivity profile and its relationship with SCCmec among clinical isolates

Background and Objectives: Staphylococcus aureus is a pathogen of great clinical relevance, especially those resistant to methicillin, called MRSA. Over the years, S. aureus antimicrobial resistance patterns have changed. Understanding such changes is essential to update protocols and propose efficient therapeutic approaches. This study aimed to characterize the temporal distribution of S. aureus antimicrobial resistance in patients admitted to the hospital as well as to assess its relationship with SCCmec typing. Methods: a total of 9,949 cultures of clinical materials were analyzed, between January 2000 and October 2019, from patients admitted to a university hospital in southern Brazil. All isolates had their identification and antimicrobial sensitivity profile analyzed using manual and automated techniques. Furthermore, 86 isolates were selected for mecA gene research and SCCmec typing using conventional and multiplex PCR techniques, respectively. Results: when assessing the temporal distribution of S. aureus over 20 years, it was possible to observe a drop in the proportion of MRSA compared to methicillin-sensitive S. aureus (MSSA). Between 2000 and 2002, the frequency of MRSA was 58.5%, whereas that of MSSA was 36.7%. However, from 2003 onwards, there was a reversal of these percentages. At the end of the analyzed period, 55.2% of infections were caused by MSSA, whereas 36.2% contained MRSA isolates. Furthermore, in the period analyzed, the highest prevalence was of SCCmectype II. Conclusion: these data suggest an epidemiological change in S. aureus from clinical materials, with a change in the prevalent type of SCCmec and changes in the antimicrobial sensitivity profile exhibited by the isolates. Such facts must be considered by the clinical staff with a focus on effective patient management, the choice of appropriate antimicrobial therapy so that effective infection control measures are implemented.

Bacterias productoras de hidrolasas aisladas de suelos de cultivos de arroz: Caracterización fenotípica y molecular

El objetivo de la presente investigación fue aislar y caracterizar bacterias provenientes de suelos de cultivos de arroz para determinar su potencial biotecnológico prospectivo. Para ello, se recolectaron suelos de cultivos de arrozales del distrito de Rioja, Región de San Martín, aislaron siete bacterias morfológicamente diferentes y determinaron sus características fisiológicas, sensibilidad antimicrobiana y capacidad de degradar diferentes sustratos. Las bacterias crecieron óptimamente entre 20 y 37 °C, a pH entre 5,0 y 10,0. Respecto a los perfiles de sensibilidad antimicrobiana; una, tres, una, una y una cepa presentaron resistencia a 11, 12, 8, 7 y 4 antimicrobianos, respectivamente. La identificación molecular se realizó mediante la amplificación y secuenciación de los genes ribosómicos 16S, obteniendo similitud con los géneros Acinetobacter, Bacillus, Staphylococcus, Comamonas y Aeromonas. Las bacterias, según su actividad hidrolítica, formaron cinco grupos: tres degradaron gelatina, leche descremada, caseína, aceite de oliva, almidón, celulosa, pectina, y tributirina; una, aceite de oliva y tributirina; otra, gelatina, leche descremada, aceite de oliva y tributirina; una, gelatina, aceite de oliva, almidón, tributirina; y una, gelatina, leche descremada, caseína, aceite de oliva y tributirina. Las bacterias aisladas presentan gran potencial como inoculantes para el enriquecimiento y la biorremediación de suelos agrícolas.

Antimicrobial Sensitivity Profile in Psittacine Birds at an Avian Teaching Hospital: A Retrospective Study, 2015-2022.

Veterinary hospitals house patient populations with diverse infectious statuses, microbiota, and histories of prior antibiotic therapy. Choanal swabs are commonly used for assessing the upper respiratory tract of birds for bacterial disease, with the samples submitted for cytologic testing and/or culture and antimicrobial sensitivity testing. The aim of this retrospective study was to identify and quantify bacteria isolated from choanal swabs collected from psittacine patients at a veterinary teaching hospital in Mexico City, Mexico. Data regarding bacterial isolates from choanal swabs were obtained from the medical records of companion psittacines suspected of upper respiratory bacterial disease that presented between November 2015 and December 2022. A total of 47.8% (175 of 366) of the bacterial isolates were from specimens obtained from red-lored Amazons (Amazona autumnalis). Gram-negative bacteria predominated, with 27 different genera identified. Klebsiella, Staphylococcus, and Escherichia were the most frequently isolated genera. A total of 90.4% (331 of 366) of the isolates were resistant to at least 1 antibiotic tested in the sensitivity panel, and a single Klebsiella isolate was resistant to 13 different antibiotics. Gentamicin had a high percentage of efficacy (79.5%; 182 of 229) against the bacterial isolates, whereas isolates tested against sulfonamide-trimethoprim (46.7%, 98 of 210), streptomycin (43.8%; 88 of 201), and clindamycin (12.9%; 15 of 116) had susceptibilities <50%. This is the first study to report common bacterial isolates and their antimicrobial susceptibility patterns from choanal swab samples collected from companion psittacines suspected of upper respiratory disease in Mexico. Clinicians can use the information presented in this study as a guide for therapeutic decision-making when managing upper respiratory bacterial infections in companion psittacine patients.

Changing Patterns of Organisms Causing Neonatal Sepsis and Their Antimicrobial Sensitivity Profile in a Tertiary Center - A Prospective Study.

To identify the profile of organisms causing neonatal sepsis and their antibiotic susceptibility pattern in recent years. In this prospective study, authors included neonates with blood culture proven sepsis. Antibiotic resistance patterns that were identified were extended spectrum β-lactamase, AmpC β-lactamase and possible carbapenamase producer. Xpert CARBA-R test was performed to identify genes causing carbapenem resistance. There were 210 neonates with 216 episodes of blood culture proven sepsis. Klebsiella pneumoniae (n = 85) and Escherichia coli (n = 19) were the most common gram-negative organisms. Coagulase negative Staphylococcus (n = 11) and Staphylococcus aureus (n = 7) were the mostcommon gram positive organisms. There were 17 episodes of fungal sepsis with Candida albicans (n = 6) being the most common. Sixty-five out of 216 (30%) organisms were multidrug resistant. Among the Klebsiella isolates, 32/85 (37.6%) were possible carbapenamase producers. Xpert CARBA-R performed for 13 infants showed that all were positive for New Delhi metallo-β-lactamase. Among the 19 Escherichia coli, 10/19 (37.6%) were multidrug resistant and 1/19 (5.3%) was a possible carbapenamase producer. The authors found a significant increase in New Delhi metallo-β-lactamase positive Klebsiella pneumoniae causing neonatal sepsis in last three years. Regular monitoring of resistance patterns and prudent use of antimicrobials are imperative in regulating the shadow pandemic of multi-drug resistant neonatal sepsis.

Antimicrobial Sensitivity Profile in Psittacine Birds at an Avian Teaching Hospital: A Retrospective Study, 2015-2022.

Veterinary hospitals house patient populations with diverse infectious statuses, microbiota, and histories of prior antibiotic therapy. Choanal swabs are commonly used for assessing the upper respiratory tract of birds for bacterial disease, with the samples submitted for cytologic testing and/or culture and antimicrobial sensitivity testing. The aim of this retrospective study was to identify and quantify bacteria isolated from choanal swabs collected from psittacine patients at a veterinary teaching hospital in Mexico City, Mexico. Data regarding bacterial isolates from choanal swabs were obtained from the medical records of companion psittacines suspected of upper respiratory bacterial disease that presented between November 2015 and December 2022. A total of 47.8% (175 of 366) of the bacterial isolates were from specimens obtained from red-lored Amazons (Amazona autumnalis). Gram-negative bacteria predominated, with 27 different genera identified. Klebsiella, Staphylococcus, and Escherichia were the most frequently isolated genera. A total of 90.4% (331 of 366) of the isolates were resistant to at least 1 antibiotic tested in the sensitivity panel, and a single Klebsiella isolate was resistant to 13 different antibiotics. Gentamicin had a high percentage of efficacy (79.5%; 182 of 229) against the bacterial isolates, whereas isolates tested against sulfonamide-trimethoprim (46.7%, 98 of 210), streptomycin (43.8%; 88 of 201), and clindamycin (12.9%; 15 of 116) had susceptibilities <50%. This is the first study to report common bacterial isolates and their antimicrobial susceptibility patterns from choanal swab samples collected from companion psittacines suspected of upper respiratory disease in Mexico. Clinicians can use the information presented in this study as a guide for therapeutic decision-making when managing upper respiratory bacterial infections in companion psittacine patients.

Antimicrobial Susceptibility Pattern of Bacterial Pathogens in Our Setup: Ear, Nose and Throat Perspective

With a high prevalence of infections involving the ear, nose, and throat, and the occurrence of drug resistance the antimicrobial susceptibility pattern of bacterial pathogens is of immense importance. Objective: To determine the antimicrobial sensitivity profile of pathogenic bacteria isolated from representative infected areas of patients with ear, nose, and throat infections. Methods: This cross-sectional observational study was conducted at Ear, Nose and Throat (ENT) Outpatient Department (OPD), Capital Hospital Islamabad, over two years. The sample included 639 pathogenic bacterial culture specimens, grown from the representative infected ear, nose, or throat of patients who attended ENT outpatients of the hospital. The bacterial cultures were subjected to the standard disc agar diffusion method to know the antimicrobial susceptibility profile. Data collected included the patient’s age, gender, area/ site of infection, bacterial pathogen isolated, and sensitivity to antibiotics. Results: The sample included 49.30% males and 50.70% females and mean age of 30.13±19.24 years. Gram-positive organisms were predominant [n=441, (69.01%)] with Staphylococcus aureus being the commonest isolate (67.92%) followed by Pseudomonas spp. (26.13%). Gram-positive isolates were sensitive to Cefoperazone+Sulbactam, Ceftazidime, Cefoperazone, Amikacin, Pipercillin+Tazobactam, Vancomycin, Gentamycin, Linezolid, Amoxicillin + Clavulanate, and Ceftriaxone with resistance to Cefixime, while the Gram-negative isolates were sensitive to Vancomycin and Meropenum, Ciprofloxacin, Levofloxacin, Ceftriaxone and Ceftazidime and highly resistant to Cefixime, Cefuroxime, Amoxicillin+Clavulanate and Co-trimoxazole. Conclusions: Since ENT infections are predominated by Staphylococcus aureus and Pseudomonas spp. When unavoidable the empirical therapy should cover these pathogens, however culture and sensitivity studies are justified keeping in view the growing resistance to antimicrobials.

Typhoid diagnosis and associated prevailing drug resistance in Mbale city, Uganda

Background The study aimed at determining the predictive values of Widal’s test against culture and the antimicrobial sensitivity profile of Salmonella typhi (S. typhi) isolates from patients attending private health facilities in Mbale city, Uganda. This was to provide evidence-based information to policy implementers for guideline enforcement. Methods This was a quantitative cross-sectional study in which 172 participants were recruited. Blood and stool samples collected were cultured; and to each stool sample the following tests were done; Xylose Lysine Deoxycholate (XLD), Salmonella Shigella agar (SSA), and MacConkey. Isolates suggestive for S. typhi were examined with triple sugar iron (TSI) and SIM (Sulphur, indole, and motile) and antibiotic sensitivity test (Ciprofloxacin, Imipenem, Ceftriaxone, Chloramphenicol and Augmentin for sensitivity testing) conducted with Mueller Hinton respectively. Generated data was entered in the Epidemiological information (Epi Info) software (version 7) and analyzed using the contingency table to determine the sensitivity, specificity, positive predictive value and the negative predictive value. The analysis was then presented in form of graphs and tables. Results The positive predictive value (PPV) for Widal’s test was 6.8% while the negative predictive value (NPV) was 100%. Three isolates were sensitive to Ciprofloxacin (3, 100%) and Imipenem (3, 100%), intermediate to Ceftriaxone (2, 67%) and resistant to Chloramphenicol (2, 67%) and Augmentin (2, 67%). Conclusion In comparison with culture, Widal’s test is highly sensitive (100%) with a low specificity of 76% and PPV (6.8%) and NPV (100%). It should therefore be followed up with a more specific confirmatory test. S. typhi was highly sensitive to both Ciprofloxacin and Imipenem; and resistant Chloramphenicol and Augmentin.

Enteric bacterial agents associated with diarrhea and their antimicrobial sensitivity profiles in children under 5 years from mukuru informal settlement, Nairobi, Kenya

BackgroundIn Kenya, diarrhoeal disease is the third leading cause of child mortality after malaria and pneumonia, accounting for nearly 100 deaths daily. We conducted a cross-sectional study in Mukuru informal settlements to determine the bacteria associated with diarrhea and their ASTs to provide data essential for implementing appropriate intervention measures.MethodsDiarrheagenic children (≤ 5 years) were purposively recruited from outpatient clinics of Municipal City Council, Mukuru kwa Reuben, Medical Missionaries of Mary, and Mama Lucy Kibaki Hospital, Nairobi. A total of 219 stool samples were collected between May 2021 and August 2021. Stool culture was done on MacConkey and Salmonella Shigella agar, while the recovered bacteria were identified using VITEK®2GNID and polymerase chain reaction (PCR) used for E. coli pathotyping. Antibiotic Susceptibility Testing was done using VITEK®2AST-GN83.ResultsAt least one bacterial organism was recovered from each of the 213 (97%) participants, with 115 (56%) participants having only one bacterial type isolated, 90 (43%) with two types of bacteria, and 2 (1%) with three types of bacteria recovered. The most predominant bacteria recovered was 85% (93/109) non-pathogenic E.coli and 15% (16/109)of pathogenic E.coli, with 2 (1%) were Enterohemorrhagic E.coli (EHEC), 6 (3%) were Enteroaggregative E.coli (EAEC), and 8 (4%) were Enteropathogenic E.coli (EPEC). Other potentially pathogenic bacteria included Enterobacter sp (27.8%), Klebsiella sp 33(11%), and Citrobacter sp 15(4.7%). Pathogenic isolates such as Salmonella 7 (2%), Proteus mirabilis 16 (6%), Providencia alcalifaciens 1 (0.3%), and Shigella 16 (4.7%) were detected. Isolates such as Pantoea spp 2(0.67%), Raoultella planticola 1(0.33%), and Kluyvera 6(2%) rarely reported but implicated with opportunistic diarrhoeal disease were also recovered. Ampicillin, cefazolin, and sulfamethoxazole-trimethoprim were the least effective antimicrobials at 64%, 57%, and 55% resistance, respectively, while meropenem (99%), amikacin (99%), tazobactam piperacillin (96%), and cefepime (95%) were the most effective. Overall, 33(21%) of all enterics recovered were multidrug-resistant.ConclusionThe study documented different bacteria potentially implicated with childhood diarrhea that were not limited to E. coli, Shigella, and Salmonella, as previously observed in Kenya. The strains were resistant to the commonly used antibiotics, thus narrowing the treatment options for diarrheal disease.

Prevalence and Antimicrobial Susceptibility of Enteric Bacteria from Poultry Farms in Kano State, Nigeria

With poultry being the most abundant domestic animals worldwide, poultry farms have emerged as a prospective and widely distributed business industry in Nigeria. The outbreak of several deadly diseases that cause economic loss and discourage poultry keeping is a major challenge to poultry farming. The main goal of this study is to isolate and identify different enteric bacteria and to find the antimicrobial sensitivity profile against the pathogens isolated from specific poultry farms in Kano State. A total of 50 samples, including both poultry feed and droppings, were collected from five different poultry farms for analysis to detect the presence of enteric bacteria. The results revealed that all bacterial isolates displayed varying levels of resistance to the tested antibiotics, but they were completely susceptible to Sulfamethoxazole and Cephalexin. In general, the results of this study indicate that these samples serve as sources of E. coli, Salmonella spp., Shigella spp., and Proteus mirabilis in poultry. These pathogenic bacteria pose a health threat, potentially leading to food poisoning and infections in both animals and humans. Consequently, efficient control measures such as proper management and handling of poultry birds, and sensitization of farmers on the abuse of antibiotics are crucial to prevent cross-contamination within poultry houses and ensure the provision of high quality poultry products.

ORGANISMS RESPONSIBLE FOR TOTAL KNEE PROSTHETIC JOINT INFECTION: A SAUDITERTIARY CENTER 10-YEAR-EXPERIENCE

Background: Total Knee arthroplasty (TKA) is a standard procedure to treat end-stage knee osteoarthritis. As with any surgery, complications may arise, and one of the common complications reported from knee replacement procedures is infection. In this study, we aimed to retrospectively determine the prevalence of the infections pathogens following TKA and identify the most common microorganisms involved in infections in knee arthroplasty. Methods: Data were gathered from archived medical files using a retrospective descriptive study methodology. The current study included patients who underwent total knee arthroplasty and experienced infections between 2007 and 2017 at King Abdul-Aziz Medical City (KAMC), Jeddah, Saudi Arabia. Results: Out of 56 patients, almost half were hypertensive (57.1%) and diabetic (46.4%). 51.8% of patients had bilateral TKA. Among the patients, a third (41.8%)had pain the primary organism identified was Staphylococcus (44.65%), and 20% of cases involved co-infection with another organism. 16% of patients had methicillin-resistant Staphylococcus aureus. Infections with pseudomonas, brucellosis, and tuberculosis were also present in 17.9%, 3.6%, and 1.8% of the patients, respectively. Conclusion: Staphylococci were identified as the primary organism responsible for prostheticknee infection in KAMC patients. We recommend a focus on staphylococci in both prophylactic and empirical antibiotic treatments. Additional multicenter studies examining larger sample sizes are required to identify other factors influencingProsthetic Joint Infection (PJI), including obtaining information on the patients antimicrobial sensitivity profiles and geographic factors.

Progressive ulcerative keratitis in dogs in the United Kingdom: Microbial isolates, antimicrobial sensitivity, and resistance patterns.

The objective of the study was to identify bacterial pathogens and their antimicrobial sensitivity profile associated with cases of canine progressive ulcerative keratitis. Analysis of microbial culture and sensitivity results from dogs with progressive ulcerative keratitis presenting to a UK referral practice between December 2018 and August 2020. Positive bacterial cultures were obtained from 80/148 (54%) of the canine ulcers sampled with 99 bacterial isolates cultured. Streptococcus canis (n = 29), Pseudomonas aeruginosa (n = 19), and Staphylococcus pseudintermedius (n = 16) were the most common isolates. Pseudomonas aeruginosa was more likely to be isolated whether the ulcer was clinically malacic at the time of sampling (OR = 10.1, p < .001). Ulcers treated prior to culture with fusidic acid were 7.6 times more likely to be positive than those treated with any other antimicrobial(s). Bacterial isolates demonstrated resistance against neomycin (85%), fusidic acid (78%), and tetracycline (68%). Conversely, isolates were most likely to be sensitive to gentamicin (88%), ofloxacin (77%), ciprofloxacin (73%), and chloramphenicol (64%). Antimicrobial combinations of chloramphenicol or gentamicin with a fluoroquinolone (ofloxacin or ciprofloxacin) or chloramphenicol combined with gentamicin were the most effective on invitro analysis (over 90% susceptibility of all isolates). The most common bacterial species associated with canine progressive ulcerative keratitis in a UK referral population were S. canis, P. aeruginosa, and S. pseudintermedius. Combination antimicrobial therapy is recommended pending culture and sensitivity results given the varied antimicrobial susceptibility profiles and significant bacterial invitro resistance to antimicrobial monotherapy.

Distribution and antimicrobial sensitivity pattern of multidrug-resistant Pseudomonas aeruginosa from the clinical specimen in Aceh, Indonesia

The development of P. aeruginosa resistance to antibiotics is increasing globally due to the inappropriate use of antibiotics. This retrospective descriptive study aimed to determine the distribution of multidrug resistant P. aeruginosa (MDRPA) and its antimicrobial sensitivity profiles. Data were taken from the bacterial identification and antibiotic sensitivity testing of clinical specimens in Aceh Provincial Referral Hospital from July 2017 to June 2019, where the VITEK® 2 Compact automatic device was used for the identification. In total, there were 307 P. aeruginosa isolates analyzed in this study. The results of this study revealed that 54.39% of P. aeruginosa isolates were multidrug resistant. The MDRPA were mostly found in sputum and pus cultures (41.91% and 23.95%, respectively). Based on the wardroom as the source, most samples came from the internal medicine unit, intensive care unit, and surgical unit with prevalence of 27.54%, 25.74%, and 20.35%, respectively. High proportion of infected patients were male (52.09%) and aged 56–65 years (23.95%). P. aeruginosa showed the highest sensitivity rate to amikacin (77.1%), followed by meropenem (74.4%), ceftazidime (70.1%), levofloxacin (65.1%), tobramycin (64.9%), piperacillin-tazobactam (64.3%), and gentamicin (61.4%). In conclusion, our data suggest that the MDRPA infection is prevalent in Aceh Province and Amikacin is recommended as the highest standard of therapy for MDRPA.

Incidence of Central Line-Associated Bloodstream Infection in a Tertiary Care Hospital in Northern India: A Prospective Study.

Background Central line-associated bloodstream infection is the most common hospital-acquired infection and is associated with high morbidity and mortality along with increased healthcare cost.However, studies on the incidence of nosocomial infections are very limited in India. Aims To determine the incidence of central line-associate bloodstream infection (CLABSI), microorganisms associated and their antimicrobial sensitivity profile in the medicalICU of a tertiary care hospital. Material and methods A total of 186patients who were admitted to the medical ICU and had a non-tunneled central venous catheter (CVC) implanted at admission in the emergency department or in the medical ICU for longer than 48 hours were monitored. By examining the blood culture reports, the patients were monitored every day for the emergence of new-onset sepsis after 48 hours following CVC insertion. The data were evaluated statistically using Microsoft Excel and SPSS version 22.0 (IBM Corp., Armonk, NY, USA). Result Out of 186 catheterized patients, 37 developed CLABSI. The incidence of CLABSI was 9.3 per 1000 catheter days and 6.7 per 1000 inpatient days with a 0.7 device utilization ratio. The most common organism isolated was Acinetobacter species (22%) followed by K. pneumoniae (16%) and E. aerogenes(16%). The highest sensitivity was displayed by polymyxin B (100%) followed by tigecycline (85.48%) and minocycline (50.82%) in Gram-negative organisms. In Gram-positive organisms, the highest sensitivity was observed in S. aureus(100%) for vancomycin, linezolid and teicoplanin whereas Enterococcus species showed linezolid (100%) followed by vancomycin (93.75%) and teicoplanin (93.75%). Conclusion The prevention ofCLABSI requires knowledge of the infection rates and of the sources, the pathogens involved as well as their antimicrobial profile. Due to risingantimicrobial resistance, surveillance programs are crucial in establishing the species distribution and resistance patterns of bacteria causing BSIsand thus providing the basis for appropriate empirical therapy.

Antimicrobial Sensitivity of Plant Extracts of Acacia arabica, Prosopis juliflora, Abutilon indicum, and Bryonia laciniosa on Staphylococcus aureus, Pseudomonas aeruginosa, and Escherichia coli

BACKGROUND: In the recent era, biological treatment using therapeutic microbes or phytochemicals has proven more beneficial than conventional methods due to several reasons - permanent control of weeds, host-specific control, cost-effectiveness, and low health risk. This study determined the antimicrobial sensitivity profile of _Staphylococcus aureus_, _Pseudomonas aeruginosa_, and _Escherichia coli_ against plants like _Acacia arabica_, _Prosopis juliflora_, _Abutilon indicum_, and _Bryonia laciniosa_. Given the importance and ease of using phytochemicals in modern Microbiology, this study has been carried out towards the approach of green synthesis of antimicrobial agents. METHODS: The primary purpose of this study was to determine the antimicrobial sensitivity of _Staphylococcus aureus_, _Pseudomonas aeruginosa_, and _Escherichia coli_ using extracts from plants like _Acacia arabica_, _Prosopis juliflora_, _Abutilon indicum_, and _Bryonia laciniosa_. Antimicrobial properties of plant extracts were analyzed by determining the _Zone of Inhibition_ (_ZOI_). The antibiogram pattern of isolated _Staphylococcus aureus_, _Pseudomonas aeruginosa_, and _Escherichia coli_ was observed to be Susceptible, Intermediate, and Slightly Resistant to _Acacia arabica_, _Prosopis juliflora_, _Abutilon indicum_, and _Bryonia laciniosa_. RESULTS: Phytochemical analysis indicates that the extracts of _Acacia arabica_, _Prosopis juliflora_, _Abutilon indicum_, and _Bryonia laciniosa_ have the potential for use in managing _Staphylococcus aureus_, _Pseudomonas aeruginosa_, and _Escherichia coli_. Further phytochemical analysis is required to identify the active components of plant extracts showing antimicrobial activity.

To Study the Carriage and Antimicrobial Sensitivity Profile of MRSA among Nursing Staff of Rural Tertiary Health Care Centre of North India

The present study is carried to determine nasal carriage of MRSA among nursing staff posted in Medicine and allied wards of a rural tertiary healthcare center in North India and antibiotic sensitivity profile of the isolated MRSA strains. Many of the carriers of MRSA harbour pathogen in areas like nares, hand surfaces, axilla and are generally asymptomatic. Colonisation in healthcare workers has increased the incidence of serious nosocomial infection wherein healthcare workers act as vectors for transmission of infection in already immuno-compromised patients. The study undertaken was a cross sectional type where in nursing staff was analysed for nasal carriage of MRSA and antibiotic sensitivity profile of MRSA. A total of A total of 60 nursing staff members posted in medicine and allied wards were recruited in this study. A total of 34 (56.6%) were females and 26 (43.3%) were males. our study showed considerable MRSA carriage among the nurses and also reported a decreased sensitivity to commonly used drugs. Also, no resistance was detected against higher antibiotics like Vancomycin, Teicoplanin and Linezolid which points to their use in eradication of infection caused by MRSA. There is a need to strictly implement and follow the hospital infection control guidelines so as to reduce the spread of MRSA to susceptible persons.

A Study of the Susceptibility of Candida Species Isolated from Human Immunodeficiency Virus Infected Patients to Antifungal Drugs

Background: On a worldwide scale there is an increase in resistance in fungal infection (resistance,) which is crucial for people with compromised immune systems. One of the most frequent causes of fungal infections in these individuals is Candida fungus infection, which can have fatal consequences. This study aimed to investigate the (medication) antimicrobial sensitivity profile of Candida in HIV seropositive patients.&#x0D; Methods: The study included a total of 674 Candida isolates. Candida was isolated from clinical samples using wet mount, Gram stain, and SDA culture. Germ tube test, cornmeal agar morphology, sugar assimilation, fermentation tests, and BACT/ALERT 3D were used to further speciate the organisms.&#x0D; Results: Six and a half percent (6.5%) of the population was found to contain one or more Candida species. The most prevalent isolate was discovered to be 20 Candida tropicalis (45.45%), followed by 9 Candida albicans (20.45%), 7 Candida glabrata (15.9%), 4 Candida parapsilosis, and 4 Candida krusei. Antifungal susceptibility test performed by disk diffusion method revealed resistance to Amphotericin B in Candida tropicalis (25%), Candida albicans (33.33%) and Candida glabrata (28.5%).&#x0D; Conclusion: The clinician can select the most efficient antifungal drug with the help of a quicker identification of the Candida species in immunocompromised patients, thereby resulting in lower treatment costs and shorter hospital stays.

Prevalence of pulpy kidney disease and antimicrobial sensitivity profile of Clostridium perfringens type D recovered from enteric intoxicated diarrheic goat of different age and gender in District Tharparkar, Sindh Pakistan

Prevalence of pulpy kidney disease and antimicrobial sensitivity profile of Clostridium perfringens type D recovered from enteric intoxicated diarrheic goat of different age and gender in District Tharparkar, Sindh Pakistan

Identification of serotypes of Mannheimia haemolytica and Pasteurella multocida from pneumonic cases of sheep and goats and their antimicrobial sensitivity profiles in Borana and Arsi zones, Ethiopia

Respiratory diseases caused by Mannheimia haemolytica (M. haemolytica) and Pasteurella multocida (P. multocida) have been known to result in a considerable loss due to mortality and reduced production. This study aimed at isolation and identification of M. haemolytica and P. multocida associated with pneumonic pasteurellosis in sheep and goats using bacteriological and molecular techniques. Identification of serotypes of M. haemolytica and P. multocida was done using indirect haemagglutination test. The in vitro antimicrobial sensitivity profiles of the M. haemolytica were tested using standard disk diffusion method. A total of 52 and 78 nasal swabs were collected from pneumonic cases for bacterial isolation and identification in Borana and Arsi zone, respectively. Four hundred sera samples were collected for identification of serotypes. The results showed that 17 of 52 (32.69%; 95% CI 20.33, 47.11) nasal swabs collected from pneumonic animals in Borana yielded positive results for Pasteurella/Mannheimia species, 13 (25.00%; 95% CI 14.03, 38.95) of which were M. haemolytica. None of the samples yielded P. multocida. Twenty-three of 78 (29.49%; 95% CI 19.69, 40.89) nasal swabs collected at Arsi from pneumonic animals yielded positive results for M. haemolytica (17) and P. multocida (6). Secondary biochemical characterization revealed that 14 of the 17 isolates conform to M. haemolytica whereas none of the 6 isolates suspected to be P. mutocida were confirmed. Eleven (84.62%) isolates from Borana and 4 (28.57%) from Arsi were confirmed to be M. haemolytica using PCR targeting the Rpt2 genes. Assay for M. haemolytica serotype A1 revealed all belong to A1. None of the isolates with cultural and morphological features of P. multocida gave positive results by molecular assay. Serological assay identified three serotypes of M. haemolytica namely A1, A2 and A7 almost in all of the samples whereas P. multocida serotype A was detected in 78.75% of the samples. The M. haemolytica isolates tested for susceptibility to antibiotics showed resistance against Bacitracin (83.33%) and Penicillin (50.00%) while they were found susceptible to Gentamycin (100%), Chloramphenicol (100%) and Sulfamethoxazole (100%) and Tetracycline (83.33%). In conclusion, the results of the present study revealed the association of M. haemolytica with pneumonic pasteurellosis in sheep and goats and can be of use in vaccine development in Ethiopia. Nevertheless, further investigations and continuous monitoring of antimicrobial resistance and appropriate selection and prudent use of antimicrobials in livestock sector are required.

Analysis of the cases of infection by Acinetobacter baumannii in intensive care units in Alagoas between 2014 and 2018

Introduction: The infection by Acinetobacter baumannii, an aerobic, gram-negative, ubiquitous coccobacillus, assumes endemic proportions with notable spread in Intensive Care Units. Aim: To analyze the cases of Acinetobacter baumannii infection in Adult Intensive Care Units in Alagoas between 2014 and 2018. Outlining: A transversal, descriptive and retrospective research was carried out with sample of 120 patients. Data collection was carried out through a questionnaire in the documents of two public hospitals in the city of Maceió-Alagoas, one of these is a referral in emergence and the other is referral in infectious diseases. Results: Of the 120 patients, 80 (66.7%) were from Hospital A and 40 (33.3%) from Hospital B. There was a prevalence of males (71.7%) and of the 18 to 40 age range (49.2%) in both hospitals. The antibiotic meropenem showed a higher frequency of use. Antimicrobial resistance and sensitivity profiles were higher for cephalosporins, carbapenems, and fluoroquinolones, as well as aminoglycosides, respectively. The most frequent bacterial isolation material was the tracheal secretion associated with mechanical ventilation. The most mentioned outcome was death. Implications: The study exposed high rates of mortality and antimicrobial resistance, as well as evidence that can contribute to the implementation of prophylactic measures for Acinetobacter baumannii.