title: [Epidemiology and geography: the pathogenic complex of Max. Sorre].
abstract: Some essential features of the pathogenic complex concept formulated by the French geographer Max. Sorre are presented, aiming at integrating epidemiological and geografic studies.
authors.affiliation: Departamento de Parasitologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, SP, 01051.
authors.forename: M U
authors.initials: MU
authors.lastname: Ferreira