Abstract

A convenience sample from 76 cats from the city of Valdivia, Chile was selected between April and September 1999 to detect Bartonella henselae antibodies. The cats were from the Veterinary Teaching Hospital of the Universidad Austral de Chile and several private clinics. The presence of antibodies to Bartonella henselae was tested for by indirect immunofluorescence. Descriptive data on sex, age, indoors and outdoors activity and flea infestation were recorded. Fifty four (71.0%) cats were for Bartonella henselae antibody positive. Seroprevalence was 68.4% in males and 73.7% in females. Cats 3-6 years old had a higher antibody prevalence than younger and older cats. Twenty nine (69.0%) cats that lived completely indoors and 25 (73.5%) cats that lived mostly outdoors were seropositives. Fifty (75.0%) cats reported to be infested with fleas had B. henselae antibodies. Human sera were obtained from 22 asymptomatic aduhs owning Bartonella henselae seropositives cats. Four persons (18%) showed serological evidence of infection.