I.S. Tyumentseva - Dr.Sc. (Med.), Professor, Chief Research Scientist, Stavropol Antiplague Institute of Rospotrebnadsor E-mail: labdiagn@yandex.ru E.N. Afanasiev - Dr.Sc. (Med.), Professor, Chief Research Scientist, Stavropol Antiplague Institute of Rospotrebnadsor E-mail: labdiagn@yandex.ru O.L. Startseva - Ph.D. (Biol.), Senior Research Scientist, Stavropol Antiplague Institute of Rospotrebnadsor E-mail: labdiagn@yandex.ru S.A. Kurcheva - Ph.D. (Biol.), Head of the Laboratory, Stavropol Antiplague Institute of Rospotrebnadsor E-mail: labdiagn@yandex.ru I.V. Zharnikova - Dr.Sc. (Biol.), Leading Research Scientist, Stavropol Antiplague Institute of Rospotrebnadsor E-mail: ivj-biotech@yandex.ru U.U. Garkusha - Junior Research Scientist, Stavropol Antiplague Institute of Rospotrebnadsor E-mail: garkusha.y@mail.ru E.V. Zhdanova - Ph.D. (Biol.), Senior Research Scientist, Stavropol Antiplague Institute of Rospotrebnadsor E-mail: labdiagn@yandex.ru S.M. Kalnoi - Dr.Sc. (Med.), leading Research Scientist, Stavropol Antiplague Institute of Rospotrebnadsor E-mail: SMKalnoi@yandex.ru