Epidemiological aspects of leptospirosis in a slum area in the city of Rio de Janeiro, Brazil. Search for leptospires and specific antibodies in rodents
- 1 September 1988
- journal article
- Published by Oxford University Press (OUP) in Transactions of the Royal Society of Tropical Medicine and Hygiene
- Vol. 82 (5), 768-770
- https://doi.org/10.1016/0035-9203(88)90231-3
Abstract
101 Rattus norvegicus and 3 Mus musculus were captured in an urban slum of Rio de Janeiro city and examined for leptospiral infection. Direct examination of urine, serology (microagglutination) and culture together gave a positivity rate of 39%. Separately, direct examination and serology gave positivity rates of 13% and 36% respectively. Serogroup Icterohaemorrhagiae predominated in the serological tests. Leptospires were isolated from 24 of the 104 rodents (23%), but 4 cultures died. The remaining 20 were identified as members of the Icterohaemorrhagiae serogroup, and 5 were further identified as serovar copenhageni. Human leptospiral infection, mainly caused by Icterohaemorrhagiae, is endemic in Rio de Janeiro city, and rodents are a major source of the disease.Keywords
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