Burundi and Sierra Leone, which were part of a handful of African countries yet to confirm cases of the coronavirus, have recorded their first positive results.
There had been doubts over Burundiâ€™s claim that no-one in the country had coronavirus. The presidentâ€™s spokesperson said the nation was an exception because it put "God first".
Health Minister ThadÃ©e Ndikumana announced on Tuesday that two nationals had tested positive for the virus after travelling from Rwanda and Dubai.
In Sierra Leone, a 37-year-old man who had arrived from France was found to have Covid-19 at the end of his quarantine period.
The government said it would not announce a total lockdown yet but a year-long state of public health emergency has already been declared, commercial flights suspended and schools ordered to close.