Epizootic situation of bird ornithosis in the territory of the Russian Federation from 2018 to 2020

Relevance. Chlamydia (ornithosis) (Chlamydiosis) is a bacterial disease, which is a zooanthroponosis, with pronounced natural foci. Chlamydia (ornithosis) is widespread in the world among animals and birds; they are recorded on all continents. The key study is Chlamydia psittaci. Infections caused by this pathogen cause a group of endocarditis, myocarditis, arthritis, keratoconjunctivitis and encephalitis, pneumonia in people. C. psittaci causes recombination most often, which increases the likelihood of a possible role of recombination in the adaptation of C. psittaci to host owners (birds, mammals, including humans). Chlamydia is one of the most dangerous and especially significant infectious diseases, especially for humans and animals, causing great economic damage, which occurs from the following consequences: reduced productivity (up to 50–60%); death of young animals from pneumonia (up to 20%); loss of animal reproduction as a result of abortions and stillbirths (5–30%), the occurrence of non-viable offspring (about 10%), an increase in infertility (up to 50%); carrying out medical, quarantine and emergency measures. Therefore, annual epizootic monitoring of morbidity takes place on the territory of the Russian Federation. The article publishes the reporting data of veterinary laboratory years of the 4th form on the diagnosis of bird ornithosis on the territory of the Russian Federation for 2018–2020.
Methodology. An assessment of the epizootic situation for chlamydia (ornithosis) in birds in the Russian Federation for 2018–2020, based on the results of the analysis, income from annual reports, observations of state veterinary laboratories in the Federal State Budgetary Institution CNMVL in the 4-vet (annual) form.
Results. During the analyzed period, the number of cases of the disease was detected among 16%, while an increase in the number of detected cases of ornithosis among birds. In 2018–2020, positive cases of ornithosis were detected in the Volga Federal District, Northwestern Federal District, Ural Federal District, Siberian Federal District, Central Federal District, and in 2020 ornithosis was detected in the Southern Federal District and the Far East Federal District bird ornithosis situation in these territories.

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