Introduction:
Covid-19 is an illness in which the main method of transmission is the
contact between a virus carrier (host) and a susceptible host. A
Covid-19 patient can infect 406 people in 30 days if preventive measures
such as isolation and social distancing are not implemented.
Asymptomatic patients, who don’t show symptoms but are carriers of the
virus, can also transmit it at the same level.