Nkurunziza took elective post as president in 2005 and was re-elected in a general election in 2010. First Lady Denise Bucumi, was airlisted by AMREF ambulance to the Kenyan capital, Nairobi, on May 21 over claims that she is seeking Covid-19 treatment.
President Nkurunziza is said to have succumbed from a cardiac arrest.
The four police officers killed Floyd intentionally responding to a call about a $20 counterfeit bill on May 25 when they detained Floyd.
Protests over George Floyd murder have spread to European cities, including London where hundreds have gathered despite coronavirus restrictions.
The countries resolve to discuss the review this week at the decision-making body of the UN health agency virtual meeting.
The government eased the curb last Monday, urging people to continue observing social distancing, but residents have been seen gathering in markets and banks.
The death toll has so far risen to 10 cases, with 11 people fully recovering from the pandemic.
The numbers bring to total 147 confirmed cases, as the country records the highest number in a single day since it reported her first case.