Kravchenko Tatyana B. RussiaОболенскState Rese arch Center for Applied Microbiology and Biotechnology, Obolensk, Serpukhov district, Moscow region, 142279, Russiakravchenko@obolensk.org Author's articles Effect of the O-Antigen Chemical Structure in Different Subspecies of Francisella Tularensis on Immunological Reactions