Third layer of covid-19
Covid-19 stand for corona virus disease of 2019. It is also known as sars cov-2. The corona virus first arise in 2019 in chaina. People have different ideas for covid-19. Some people said that it is bioterirism and some people said that its a natural pandamic. Any how two layer of covid-19 were gone but now a days the third layer is spreading very rapidly. The third layer of corona virus is mutated gene virus. Mutation occure in the corona virus which is very dangerous for health because for the third and mutated layer there is no vaccine prepared for this layer. Vaccine preparation tool much more time and there insufficient time for the vaccine because the third layet is on fire and much more people are disturbed from third layer of corona in different parts of the word and in different countries. So follow the sop,s mean standard oprating procedures and take of your self and your family. The corona virus affect mainly old age people and child becuse the immunty of these people a...