2020-10-30
Coronaviruses are a group of RNA viruses that cause diseases in mammals and birds. In humans and birds, they cause respiratory tract infections that can range from mild to lethal. Mild illnesses in humans include some cases of the common cold. In contrast, more lethal varieties can cause SARS, MERS, and now COVID-19 disease. The most recent type of coronavirus, severe acute respiratory syndrome...
2020-10-29
