Abstract
Objective: Prevalence of leptospirosis in humans is found in an alarming number in recent times. This endemic zoonotic disease is widespread and potentially fatal. It is usually seen in areas with poor socioeconomic conditions, water stagnation, garbage accumulation, which becomes breeding sites for the rodents. Infection may turn epidemic during monsoon. Reservoir of infection is rat scientifically named as Rattus rattus and infection results from direct or indirect exposure to host animals that carry the pathogen in their renal tubules and shed pathogenic leptospires in their urine. The main objective of this study was to estimate the seropositivity of leptospirosis in patients presenting with undifferentiated acute febrile illness for 5 to 7 days during one year period from February 2023 to February 2024 in a tertiary care hospital, Visakhapatnam, India. Methods: A total of 279 blood samples received from suspected cases of leptospirosis were subjected to IgM ELISA. Results: Out of total 279 cases, 20 were positive for leptospirosis (OD ratio ≥1.00). All the positive cases presented with a fever more than 99.5°F, chills and headache with elevated serum procalcitonin levels. Peak incidence of cases was recorded during July and August 2023. Conclusion: Seroprevalence of human leptospirosis in this study was found to be 7.2%.
Published Version
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