Spotted fever in Brazil: a seroepidemiological study and description of clinical cases in an endemic area in the state of São Paulo.
Am J Trop Med Hyg
; 65(4): 329-34, 2001 Oct.
Article
em En
| MEDLINE
| ID: mdl-11693878
ABSTRACT
During 1985-1995, illnesses clinically and epidemiologically compatible with Brazilian spotted fever were identified in 17 patients in the county of Pedreira, in the state of São Paulo, Brazil. Spotted-fever group rickettsial infection was confirmed by serology and/or immunostaining of tissues in 10 of these patients. Immunostaining confirmed infection in a 37-year-old pregnant patient, although rickettsial antigens were not demonstrable in the tissues of the fetus. A serosurvey was conducted in four localities in the county to determine the prevalence of subclinical or asymptomatic infections with spotted fever group rickettsiae. Five hundred and twenty-five blood samples were tested by an indirect immunofluorescence assay for antibodies reactive with Rickettsia rickettsii. Twenty-two (4.2%) of these samples demonstrated titers > or = 164. The results indicate that Brazilian spotted fever is endemic within this region of Brazil.
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Base de dados:
MEDLINE
Assunto principal:
Rickettsia rickettsii
/
Febre Maculosa das Montanhas Rochosas
/
Doenças Endêmicas
/
Anticorpos Antibacterianos
Tipo de estudo:
Diagnostic_studies
/
Observational_studies
/
Risk_factors_studies
Limite:
Adult
/
Animals
/
Child
/
Child, preschool
/
Female
/
Humans
/
Male
/
Middle aged
País como assunto:
America do sul
/
Brasil
Idioma:
En
Ano de publicação:
2001
Tipo de documento:
Article