To the moment of writing of book pick-a-back author teaching experience in a medical institute more than 9-ти years, numerous performances on international conferences. Also Д. В. Ivanov during 4th presented Russian medical science in Chinese Republic of People's. He is confessed the government of PEOPLES Republic of China by the specialist of higher category are categories of А. Invaluable experience got due to work with the Chinese, character allowed to study lives, culture, traditions of this country, and also gave to the author an opportunity already in February, 2020 to do clear conclusions about what be going on in China, world and in Russia - in connection by the declared pandemic of covid - 19.I will not be "surprised, if for someone these materials will be acquainted, and for some they can become complete revelation. But after reading, as the saying goes, all пазлы must be folded in a general picture"!, - an author assures, adding that drafting books were built taking into account clinical experience, scientific and teaching activity.Counted on the wide circle of readers.A publishing layout is stored in the format of PDF A4.