title: Leptospirosis in Portugal: epidemiology from 1991 to 1997.
abstract: The term leptospirosis describes a group of diseases caused by members of the order Spirochaetales, mainly the species Leptospira interrogans. Infection can be asymptomatic but disease of differing severity and clinical features (often suggestive of menin
authors.forename: J.M.
authors.initials: JM
authors.lastname: Falcao
authors.forename: P.J.
authors.initials: PJ
authors.lastname: Nogueira
authors.forename: C
authors.initials: C
authors.lastname: MatiasDias
authors.forename: Z.P.
authors.initials: ZP
authors.lastname: Pimenta