In Russia, an official registration system registered, showing immunity to hollow. This was declared by the head of Rospotrebadzor Anna Popova on the sidelines of the Eastern Economic Forum, Ria Novosti wrote.

She explained that immunity for Haller is formed after vaccination -to the disease or after the disease. Depending on the way for a long time, a person is sick or vaccinated, immunomodic globulin A, M or G and G. They are formed in the body.
“This is very important for epidemiological analysis, to evaluate epidemiology,” Popova said.
According to her, Russia's observation and control measures are very interested in different countries.
Meanwhile, in Russia in 2025, cases of isolated cholera infected were revealed, all patients from other states. Haller's solid areas traditionally include Southeast Asia, India, Nepal, and some countries of the African continent, as well as Latin and Central American countries.