The article approaches the investigation on the level of leptospiral infection of inhabitants who dwelled together human cases of leptospirosis, occurred in the Aricanduva River Valley, on the east side of São Paulo city, Brazil, in 1983. In a past paper, it was presented the data on person of the studied group and their environment. Is this paper, the sorologic aspects were 9,8% (6 cases) of serum samples showed reagents for serovars panama (2), copenhageni (1), javanica (2) and patoc (1).
Leptospirosis; Public health; Serotyng