AN EPIDEMIC OF AVIAN AND HUMAN PSITTACOSIS

Psittacosis may occur in epidemic or sporadic form. We report an outbr eak of avian and human psittacosis associated with an aviary in Philad elphia, Pa. The epidemic spread among birds in the aviary and then to men and women who were in contact with the birds. Chlamydia psittaci w as cultured from infected birds, and the human patients were evaluated clinically and serologically. After proper treatment of the birds, cl eaning of their cages, and institution of appropriate bird-handling te chniques, the outbreak among the birds resolved. The human patients we re treated, and no subsequent cases have been seen.