Rickettsiosis Tick-borne Birobidzhan

Rickettsiosis (Rickettsia) is an acute infectious disease that is caused by rickettsia and is transmitted by various types of ticks, in particular, R. sibiricae is carried by some species of taiga ticks - Ixodes persulcatus, Ixodes pavlovskyi, which live in nature. When bitten by an infected tick or other arthropod, the infection is transmitted to a person. The main source of human infection in nature is rodents. On the territory of the Jewish Autonomous Region (JAO), Rickettsiae sibiricus is found in test tubes of all animals studied. The largest number of positive results were diagnosed in insectivorous animals - 58%; the frequency of pathogen isolation in voles is especially high - 80%. Also, more often positive results were recorded in birds - 45%. Epizootic activity has been established throughout the year, with the highest rate from May to July - up to 32%. The source of infection is believed to be rodents (hamsters and jerboas), voles and birds, mainly nesting on the ground in rodent-infested pastures. Pets and birds become infected through contact with rodents and voles. There is no information about the possibility of transmission of infection to humans through food, drinking water and household items. In the Jewish Autonomous Region, blood testing using only serological methods is common; the North Asian tick-borne R. Ixodid virus has not been detected, so distribution among natural animals is confirmed. The connection between the outbreak and the infection of rodents in the field of field mice has been confirmed, since parasitosis of field mice and voles was massively recorded in late June - early July in 7 settlements with a total population of about 180 thousand people. In natural foci, surveys