Clinical-epidemiological study of leptospirosis in humans and reservoirs in Yucatan, Mexico
Rev. Inst. Med. Trop. Säo Paulo
;
44(6): 335-340, Nov.-Dec. 2002. tab
Artigo
em Inglês
| LILACS
| ID: lil-326353
ABSTRACT
A leptospirosis clinical-epidemiological study was made in humans and reservoirs in the state of Yucatßn, MÚxico. Interviews and serological analyses were made on 400 persons from an open population, 439 probable cases of leptospirosis and 1060 animal reservoirs (cows, pigs, dogs, rats and opossums). IgM Leptospira DipstickTM and Microscopic Agglutination Test (MAT) was used to detect human antibodies to leptospiras and serovar respectively. Leptospirosis incidence in humans was 2.2/100,000 inhab. in 1998, 0.7/100,000 in 1999 and 0.9/100,000 in 2000. Overall seroprevalence was 14.2 percent, relatively unchanged from seroprevalences observed 20 years ago. Highest seropositivity was found in people over 56 years of age, predominating males over females. Predominant serovars in the open population were tarassovi, hardjo, pomona and panama. Leptospirosis cases were most frequent in rural areas, and the anicteric course predominated over the icteric. The panama, icterohaemorrhagiae and pomona serovars predominated in both anicteric and icteric courses. Dogs, pigs and rodents had the highest seropositivity among the reservoirs. Contact with rodents and natural water sources were significant factors (p ú 0.05). Human cases (74 percent) occurred during the rainy season. It is concluded that leptospirosis is still a serious illness with important clinical and epidemiological implications in the state of Yucatßn, Mexico
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Reservatórios de Doenças
/
Leptospirose
Tipo de estudo:
Estudo de incidência
/
Estudo prognóstico
Limite:
Animais
/
Feminino
/
Humanos
/
Masculino
País/Região como assunto:
México
Idioma:
Inglês
Revista:
Rev. Inst. Med. Trop. Säo Paulo
Assunto da revista:
Medicina Tropical
Ano de publicação:
2002
Tipo de documento:
Artigo
País de afiliação:
México
Instituição/País de afiliação:
University of Yucatan/MX
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