what is corona virus
Answers
Coronaviruses are a group of related RNA viruses that cause diseases in mammals and birds. In humans, these viruses cause respiratory tract infections that can range from mild to lethal. Mild illnesses include some cases of the common cold (which is caused also by certain other viruses, predominantly rhinoviruses), while more lethal varieties can cause SARS, MERS, and COVID-19. Symptoms in other species vary: in chickens, they cause an upper respiratory tract disease, while in cows and pigs they cause diarrhea. There are as yet no vaccines or antiviral drugs to prevent or treat human coronavirus infections
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Answer:
Corona virus is a type of virus that affect humans, typically leading to an upper respiratory infection(URI) . Seven different type of corona virus have been identified. Most people will be infected with at least one type of corona virus in their lifetime.