[Anti-Leptospira agglutinins in different professional groups in the city of Londrina, Paraná]. / Pesquisa de aglutininas antileptospira em diferentes grupos profissionais na cidade de Londrina, Paraná.

Serum samples were obtained from 208 individuals in Londrina, Paraná, Brazil. The serum were analysed for leptospiral agglutinins by agglutination microscopic tests and 28.4% were positive. The highest positivity was found for the serum of garbage collector (46.7%).