| epidemiological investigation of chlamydophila psittaci in pigeons and free-living birds in croatia. | during 2003, 278 adult pigeons (columba livia) and 54 birds of 11 other free-living species were caught in the various locations in the city of zagreb, croatia. sera from 182 pigeons were tested for the presence of antibodies against chlamydophila (c.) psittaci by elisa test and 174 of them (95.6%) were found positive. because of the high positivity rate in sera, cloacal swabs of 278 pigeons as well as 54 other species of free-living birds were tested for the presence of c. psittaci antigen. fou ... | 2005 | 15943062 |