Prevalence of Q fever infection in the Addis Ababa abattoir.

A total of 465 human sera were collected for a serological survey of Q fever Infection from the Addis Ababa, Ethiopia, abattoir, in 1988. The subjects' sera were tested for antibodies against Coxiella burnetti antigen using the complement fixation test. Results indicate a prevalence rate of 6.5%. This finding clearly demonstrates serological evidence of post infection with Q fever in employees of the abattoir.