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Artigos Originais • Rev. Saúde Pública 14 (4) • Dec 1980 • https://doi.org/10.1590/S0034-89101980000400014 linkcopy

Open-access Seasonal variation in the prevalence of leptospirosis in stray dogs in the citv of S. Paulo (Brazil)

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    One thousand, four hundred and twenty-eight sera from stray dogs from the city of S. Paulo were examined using agglutination microscopic testing. Of the total of 1428 sera, 308 (21.6%) showed positive. Seasonal influence was observed in the leptospiral infection of the canine population studied in that the largest number of the reagent sera was verified in the summer (24.2%) and autumn (24.9%). In contrast, spring (18.3%) and winter (18.3%) prevalence levels were lower. These differences were considered significant from the statistical point of view. The canicola serotype was found to be the main cause of leptospirosis in the population examined (50.7%), followed by icterohaemorrhagiae (25.5%), grippetyphosa (7.8%), pomona (67%), and ballum (4.4%).

    Leptospirosis; Dogs; Agglutination tests; Seasons

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    Faculdade de Saúde Pública da Universidade de São Paulo Avenida Dr. Arnaldo, 715, 01246-904 São Paulo SP Brazil, Tel./Fax: +55 11 3061-7985 - São Paulo - SP - Brazil
    E-mail: revsp@usp.br
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