Presencia de Leptospira spp, en roedores sinantrópicos en la urbanización La Arborada El Tambor Huancayo, 2021

Abstract

Leptospirosis is one of the most widespread zoonotic diseases in the world. Patients generally present with a nonspecific self-limited febrile state; however, a variable proportion of cases develop so-called Weil's disease, characterized by jaundice, acute renal failure, bleeding diathesis, and severe pulmonary hemorrhagic syndrome. Synanthropic rodents: Rattus norvegicus, R. rattus and Mus musculus are considered important sources of infection, among which Rattus norvegicus is the main host of L. interrogans serovar Copenhageni, which is one of the most pathogenic Leptospira species for human infections. Given the importance of rodents as a source of infection of pathogenic Leptospira for humans, and due to the lack of pathological information in naturally infected rodents, the objective of this study was to evaluate the degree of infection of this disease in rodents located in the Urbanization La Arborada, Huancayo, Peru. A total of 750 traps were placed inside houses that presented rodent infestation (presence of traits) in 75 points, with 10 traps each per house. From the installation they remained 7 continuous days, with periodic revisions every 24 hours. The results show that three quadrants of the zoning presented a high level of risk with more than 20% trapping. The most common rodents were R. rattus and R. norvegicus. Six areas presented a medium risk level (more than 13%) with a greater presence of M. musculus, and 8 quadrants had a low risk (more than 5%) with a greater presence of M. musculus.