Occurrence of the pigeon Chlamydophila psittaci in pigeons (Columba livia) within the city of Salvador, Bahia

The existence of numerous pigeon (Columba livia) populations in urban centers, in most of the world, has become a public-health risk given the zoonoses they can transmit. Infection with Chlamydophila psittaci was evaluated in pigeons that frequent public areas, such as squares, streets and tourist sites in the city of Salvador, through PCR from fresh feces samples, cloacal swabs and oropharyngeals. The study revealed a frequency of infection with C. psittaci of 11.7% (16/137) in pigeons, and infected birds were found in eight of the ten locales researched. The detection of C. psittaci in samples of cloaca and oropharyngs was greater (15.8% - 3/19) than in the samples of fresh feces (11% - 13/118). The results show the occurrence of infection with C. psittaciem in pigeons that live in public areas in the city of Salvador and points to the necessity of elaborating control and monitoring measures for the populations of urban pigeons as well as developing actions that will raise society's awareness of these risks to public health.