[The possibility of long-term prognosis in influenza A pandemics]

On the basis of the analysis of the most significant influenza A pandemics over the period of 300 years, compared with periodic long-term changes in the climate and the cycles of solar activity, regularities in the manifestation of the biorhythms of the epidemic activity of influenza A virus have been established. The prognosis of pandemics for near and remote future is proposed.