Zoonotic Human Chlamydiosis of Avian Origin—A Review with Particular Reference to Epidemiology and Control

SummaryThis review is concerned with the relationship between avian and human chlamydial infections and with the current importance of this zoonosis. Available data relating to zoonotic human chlamydiosis are presented (Part 1) revealing an increase in reported human cases in recent years in various countries including Britain, the United States, and Denmark. A wide range of avian species is shown to have provided the source of these human infections but the various psittacine species continue to be implicated frequently. Human chlamydial infections acquired in poultry processing establishments have been recorded in Eastern Europe, USA and recently in Britain.Control measures used in various countries including import restrictions, quarantine, poultry meat inspection, chemotherapy and vaccination are described (Part 2) and their relative efficacy discussed. The greater involvement of veterinary public health workers in the investigation and control of chlamydiosis outbreaks in both man and animals is essential to provide the information necessary if this threat to human health is to be contained in the future.(Part 2 of this paper will appear in the June 1983 issue of the Journal).