[Nature-focal rickettsioses in Mongolia. Two decades of Russian-Mongolian scientific collaboration].

The results of many years' studies of nature-focal rickettsioses in Mongolia in collaboration of Soviet (Russian) and Mongolian specialists under leadership of I. V. Tarasevich are represented. Presence of contacts of population, domestic and wild animals with Coxiella burnetii and Rickettsia sibirica on the territory of Mongolia was established. The map of spread of ticks corresponding to their epidemiological significance was developed. Methodological documents for prevention of nature-focal rickettsioses in Mongolia were developed for organs of healthcare and veterinary medicine. Corpuscular inactivated vaccine against Q-fever from immunogenic strains "Dermacentor-Mongol 1". "XY -1958" was prepared.