Does Coronavirus Weaken With Time?

Talking about the mutation of the coronavirus, there are several scientific theories, says Dr Randeep Guleria. The virus can become less virulent because if it is more virulent, people go to hospitals, die and thus the spread stops. Current data, however, shows there is no dramatic change in the virus and this need more study, he said. As far as vaccine is concerned, Dr Gulerai says that we could have a successful vaccine by the end of this year or the beginning of next year.