The health institutions are preparing for a seasonal increase in the incidence now that the sanitary and epidemiological situation in Minsk is stable. An increase in the incidence of influenza is expected in the months of January-February. But considering the last year, when the increase started at the end of November, now is the optimal time for vaccination. It takes two weeks to develop immunity. Almost 180,000 people have already been vaccinated against the flu in Minsk this season. Mobile teams were organized: vaccination is carried out directly at the workplaces. Three vaccines are used.