| serologic investigation of the prevalence of chlamydophila psittaci in occupationally-exposed subjects in eastern sicily. | the aim of the study was to investigate the occurrence of serum antibodies to c. psittaci in workers at 8 stock farms located in a rural area of eastern sicily. serum samples from 188 workers and 160 controls were tested for immunoglobulin iga, igg and igm direct against c. psittaci by microimmunofluorescent test (mif). seropositive subjects were defined as those with igg titres of 1:16-1:256, and seronegative subjects as those whose titre was <1:16. to rule out the presence of cross reactive an ... | 2007 | 17655184 |