Current epidemic situation of Q fever in Rostov Region

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Objective. Analysis of cases of the disease, factors and conditions of Q fever infection in the population of the Rostov Region.

Materials and methods. The study was conducted by the method of epidemiological analysis using reporting data. Blood serum samples of people and farm animals, field material and environmental objects from anthropological (economic) foci were examined using modern laboratory methods.

Results. In 2022, 27 cases of Q fever were registered in 4 districts of the Rostov Region. The victims were mainly men of working age, residents of rural areas. Most patients were infected in anthropogenic foci formed in private subsidiary farms (PSF) and agricultural enterprises. During the epizootological survey conducted in natural biotopes, isolated finds of Coxiella burnetii were detected. In 28.6% of samples of material collected in anthropogenic foci, the pathogen DNA was detected. According to the results of studying the immune layer of the population of the Salsky and Remontnensky districts, the proportion of seropositive individuals was 3.0 and 1.3%, respectively. The pathogen was cultured on the Vero E6 cell line and a biological sample was set up. A culture of C. burnetii was isolated from the patient’s blood serum.

Conclusion. The current epidemic situation with Q fever in the Rostov Region is determined by periodically registered cases of human disease. Patients were identified in the southeast of the region in areas with a developed livestock farming structure. The epidemic process is caused by the formation of anthropogenic foci in private subsidiary farms and agricultural enterprises.

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Sobre autores

Elena Sokirkina

Rostov-on-Don Anti-Plague Research Institute, Federal Service for Surveillance on Consumer Rights Protection and Human Well-Вeing

Autor responsável pela correspondência
Email: sokirkina_en@antiplague.ru
ORCID ID: 0000-0002-4864-9576

Junior Researcher

Rússia, Rostov-on-Don

Aleksey Noskov

Rostov-on-Don Anti-Plague Research Institute, Federal Service for Surveillance on Consumer Rights Protection and Human Well-Вeing

Email: plague@aaanet.ru
ORCID ID: 0000-0003-0550-2221

Cand. Med. Sci, Director

Rússia, Rostov-on-Don

Еvgeny Kovalev

Office of the Federal Service for Surveillance on Consumer Rights Protection and Human Well-Вeing in the Rostov Region

Email: master@rpndon.ru
ORCID ID: 0000-0002-0840-4638

Head, Chief State Sanitary Doctor for the Rostov Region

Rússia, Rostov-on-Don

Garry Karpushchenko

Center for Hygiene and Epidemiology in the Rostov Region

Email: master@donses.ru
ORCID ID: 0000-0003-4672-8753

Cand. Med. Sci, Сhief Physician

Rússia, Rostov-on-Don

Natalia Pichurina

Rostov-on-Don Anti-Plague Research Institute, Federal Service for Surveillance on Consumer Rights Protection and Human Well-Вeing

Email: plague@aaanet.ru

Cand. Med. Sci, Leading Researcher

Rússia, Rostov-on-Don

Igor Orekhov

Rostov-on-Don Anti-Plague Research Institute, Federal Service for Surveillance on Consumer Rights Protection and Human Well-Вeing

Email: plague@aaanet.ru

Cand. Biol. Sci, Senior Researcher

Rússia, Rostov-on-Don

Veronika Evdokimova

Rostov-on-Don Anti-Plague Research Institute, Federal Service for Surveillance on Consumer Rights Protection and Human Well-Вeing

Email: plague@aaanet.ru
ORCID ID: 0000-0001-5522-9097

Cand. Biol. Sci, Researcher

Rússia, Rostov-on-Don

Diana Simakova

Rostov-on-Don Anti-Plague Research Institute, Federal Service for Surveillance on Consumer Rights Protection and Human Well-Вeing

Email: plague@aaanet.ru

Cand. Biol. Sci, Senior Researcher

Rússia, Rostov-on-Don

Alexey Vodopyanov

Rostov-on-Don Anti-Plague Research Institute, Federal Service for Surveillance on Consumer Rights Protection and Human Well-Вeing

Email: vodopyanov_as@antiplague.ru
ORCID ID: 0000-0002-9056-3231

Cand. Med. Sci, Leading Researcher

Rússia, Rostov-on-Don

Antonina Fedchenko

Territorial Department of the Office of the Federal Service for Surveillance on Consumer Rights Protection and Human Wellbeing in the Rostov Region in the Salsky, Tselinsky, Peschanokopsky, Yegorlyksky, Orlovsky, Proletarsky (s) districts

Email: master@rpndon.ru

Head

Rússia, Salsk

Bibliografia

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2. Fig. 1. Territorial distribution of Q fever cases and positive samples from various environmental objects collected in private subsidiary farms of patients in the Rostov Region (2022)

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3. Fig. 2. The proportion of cases by infection conditions in the Rostov Regionn, 2022 (%)

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4. Fig. 3. Fragments of dendrograms constructed based on the nucleotide sequence IS1111

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