Africa's top public health official says the continent has seen a 20 per cent decrease in confirmed coronavirus cases in the past week, AP reported.

However, John Nkengasong warns that we shouldn't go home celebrating that our pandemic is over.

Nkengasong with the Africa Centers for Disease Control and Prevention tells reporters that testing and other efforts to contain the virus are largely working, but just one or two cases could reignite infections.

He says 23 of Africa's 54 countries have reported a sustained decrease in new confirmed cases in the past couple of weeks.