RESUMO
Background: Salmonella enterica, serotype typhi, remains the predominant Salmonella species causing enteric fever in India. The mode of Salmonella typhi transmission is considered to be predominantly vehicle-borne through contaminated water or food. In India, the incidence of Salmonella typhi occurs between the months of April and June (dry season) followed by July and September (monsoon season). Typhoid fever may be difficult to distinguish clinically from other febrile illnesses and if left untreated, intestinal, neuropsychiatric, and other complications develop in some patients. Objective: The aim of this study was to determine the prevalence of S. typhi in bloodstream infections and its antimicrobial susceptibility pattern among patients with febrile illness. Methodology: Febrile patients admitted in the hospital who were prescribed blood culture tests and whose samples were sent to microbiology laboratory were included in the study. All blood samples (average 5 mL for adults and 2-3 mL for pediatric age group) were immediately inoculated into Bac-T ALERT aerobic blood culture bottles containing sodium polyethanol sulfonate as an anticoagulant (0.025%). If growth was isolated, isolated colony characteristics of growth and Gram stain were assessed. On Gram staining, typical nonlactose fermenting Gram negative bacilli were further subjected to species identification and detection of antimicrobial susceptibility pattern on the VITEK2. Results: In this study period, a total of 511 blood culture (paired) samples were processed, out of which 47 isolates of Salmonella were obtained. Among these isolates, 33 (70.23%) were from males, and 14 (29.77%) were from females. Amongst these, 35 (74.4%) patients were from rural, 8 (17%) were from subrural, and 4 (8.5%) were from urban areas. Out of the total 47 isolates of Salmonella, 42 (89.36%) were Salmonella typhi, 2 (4.25%) were Salmonella paratyphi A and B each, and 1 (2.12%) was Salmonella enterica. Antimicrobial susceptibility pattern of Salmonella isolates revealed that all the isolates of Salmonella species were highly susceptible (95%-100%) to third generation cephalosporins (ceftazidime, ceftriaxone, cefepime, cefoperazone-sulbactam) and other higher antibiotics such as betalactamase inhibitors - piperacillin tazobactam (95%-100%) and Ticarcillin-clavulanic acid (100%). They were also highly susceptible (100%) to carbapenams (imipenem, merpenem, doripenem, and ertapenem) but showed a fairly decreased susceptibility was towards nalidixic acid with 15% for Salmonella typhi and 50% for other Salmonella isolates. Conclusion: Surging drug-resistant Salmonella enterica cases, the level of resistance was not as high as predicted in our study population. Multidrug-resistant (MDR) trends may vary; therefore, drug susceptibility testing side-by-side to empirical therapy is mandatory, especially in developing countries where there is a practice of self-medication.
RESUMO
INTRODUCTION: Water is an essential nutrient which plays an important role in digestion, absorption of food and elimination of waste products by urine. Udaipur also known as 'City of Lakes' or even the 'Venice of East' due to its unique and beautiful lake system has an exceptional importance at national and international levels. The aquatic systems are mostly dominated by bacteria and fungi and in the natural environments micro-organisms have very specific roles with regard to the recycling of materials and purification of water. Presence of coliform bacteria in the water indicates the fecal pollution of water. METHODS: Water from all the three lakes were included for the assessment of their water quality parameters. Biological parameters like MPN of coliforms and presence of bacterial and cyanobacterial contaminants were read. The MPN (Most Probable Number) of Coliform was determined by the Presumptive Coliform Count (Multiple Tube Method) in 100 ml of sample water. CONCLUSION: The coliform bacteria is the primary bacterial indicator for fecal pollution in water. The purpose of study was to make people aware about the bacterial load in water bodies. Based on this, categorical representation of water was unacceptable for the purpose of swimming and bathing.
