Coronavirus is a respiratory disease which is spread through droplets or touching one's face after coming into contact with objects which have been exposed to an infected individual, who may or may not show symptoms, says Unicef.
President Cyril Ramaphosa on Monday announced a 21-day nationwide lockdown. It prevents people leaving their homes and closes businesses to contain the virus. By Monday, SA had 402 cases of Covid-19.
Police, traffic officers, health workers and military medical personnel are some of those exempted from the lockdown.
“This is a decisive measure to save millions of South Africans from infection and save the lives of hundreds of thousands,” said Ramaphosa, after announcing that the lockdown would start at midnight on Thursday.