Coronavirus Mask Coronaviruses are likely to affect adults and cause acute viral nasopharyngitin according to the opinions of scientists. The beginning of spring and winter are the most active periods for these viruses. There are more than 30 types of coronaviruses, of which 3 to 4 are infectious to humans. Coronaviruses cannot be grown in laboratories and, as such, it is very difficult to evaluate a person suffering from a common cold due to coronaviruses.…