Herd immunity is the most widely used term, and this is the point that governments hope to reach after vaccination, with expectations that life will return to normal after people acquire antibodies to the disease, amid questions about the situation that the virus will become when most people are immune to infection.

According to the "New York Times"; What is certain is that the virus remains with us and will not disappear permanently, regardless of the progress of the vaccination campaigns, but it will not remain a serious threat when most adults are immunized against "Covid 19" disease; Because it will be similar to a common cold; According to the "Science" magazine.

The experts explained that the health situation will not remain this dangerous and prepared, when a large number of people have contracted the virus and then recovered from it, meaning that the severity of the disease will significantly decrease.

But children who will be infected with the emerging coronavirus will have some runny nose, or they may become infected and will not have any symptoms at all.