[Outbreak of human leptospirosis by recreational activity in the municipality of São José dos Campos, São Paulo. Seroepidemiological study]. / Surto de leptospirose humana por atividade recreacional no município de São José dos Campos, São Paulo. Estudo soroepidemiológico.

An outbreak of human leptospirosis due to recreational activities occurred at São José dos Campos, São Paulo, Brazil in November 1987. It involved a group of persons who had participated in a gathering in a suburb club which had a swimming pool fed with natural water. Epidemiological investigation was carried out and laboratory tests from the patients were done. It was observed that a high prevalence of the pomona serotype (91%) was found in the serological analyses, while the presence of the agent of the infection could not be found in the water club swimming pool.