Микробоносительство возбудителя орнитоза у декоративных птиц

Abstract

The analysis of data on the actual prevalence of chla-mydiosisand thedamage to human health, poultry and livestock farming proves that the disease is a noteworthy problem for public health and farming. The spread of chla-mydia infection often leads to large scale damage to pet birds, as well as to humans, so its diagnosis and control measures are important. In Russia, in recent decade, the number of contaminated sites regarding ornithosis annually ranges from 30 to 53. The number of contaminated sites changes slightly but the number of sick birds noticeably changes from 131 to 2390 heads. According to the Veteri-nary Department, 9 contaminated sites were registered in the Altai Region from 2010 through 2020, i.e. 1-3 sites per year. The infectiousness of Clamydia psittaci is very high which leads to inapparent, chronic infection and long-term carriage, intense chlamydial release; that is an important epizootological prerequisite for a consistent continuous and latent infection in the animal population. Therefore, the main sources of the causative agent are sick birds and asymptomatic chlamydia carriers. Of the 145 examined individuals, inclusion bodies were found in 52, or 36%. In 2008, similar studies were carried out on 11 parrots; 6 birds were infected with the causative agent of psittacosis, or 54.5%. The autopsy of parrots revealed characteristic signs of psittacosis in 19 (82.6%) cases: pneumonia, exudate and fibrosis depositions in the air sacs, enlarged spleen and liver, in 5 cases -hemorrhages on the epicardium.