A nurse vaccinates a health worker against the coronavirus disease (COVID-19), in Harare, Zimbabwe, February 18, 2021. REUTERS/Philimon Bulawayo

A health worker vaccinates a man against the coronavirus disease (COVID-19), in Harare, Zimbabwe, February 18, 2021. REUTERS/Philimon Bulawayo

Zimbabwean Vice-President and Health Minister Constantino Chiwenga receives a coronavirus disease (COVID-19) vaccination in Harare, Zimbabwe, February 18, 2021. REUTERS/Philimon Bulawayo

A nurse prepares to vaccinate Zimbabwean Vice-President Constantino Chiwenga as the country begins vaccinations against the coronavirus disease (COVID-19), in Harare, Zimbabwe, February 18, 2021. REUTERS/Philimon Bulawayo

Workers offload crates as the country's first batch of coronavirus (COVID-19) vaccines arrives from China, in Harare, Zimbabwe, February 15, 2021. REUTERS/Philimon Bulawayo

Workers offload boxes as the country's first batch of coronavirus disease (COVID-19) vaccines arrives from China, in Harare, Zimbabwe, February 15,2021. REUTERS/Philimon Bulawayo

Members of the media look on as an aircraft carrying Zimbabwe's first batch of coronavirus disease (COVID-19) vaccines lands in Harare, Zimbabwe, February 15,2021. REUTERS/Philimon Bulawayo

Pallbearers carry a coffin at the burial of two cabinet ministers and a retired general who died after contracting the coronavirus disease (COVID-19) in Harare, Zimbabwe January 27, 2021. Picture taken January 27, 2021. REUTERS/Philimon Bulawayo

Pallbearers carry a coffin at the burial of two cabinet ministers and a retired general who died after contracting the coronavirus disease (COVID-19) in Harare, Zimbabwe January 27, 2021. Picture taken January 27, 2021. REUTERS/Philimon Bulawayo

People sit beside banners outside a hospital during the coronavirus disease (COVID-19) outbreak in Harare, Zimbabwe January 28, 2021. Picture taken January 28, 2021. REUTERS/Philimon Bulawayo

A man wears a mask as he walks past closed shops during a lockdown aimed at limiting the spread of the coronavirus disease (COVID-19) in Harare, Zimbabwe January 28, 2021. Picture taken January 28, 2021. REUTERS/Philimon Bulawayo

Zimbawean Vice-President and Minister of Health Constantino Chiwenga arrives for the burial of two cabinet ministers and a retired general who died after contracting the coronavirus disease (COVID-19) in Harare, Zimbabwe January 27, 2021. Picture taken January 27, 2021. REUTERS/Philimon Bulawayo

Health officials spray a coffin at the burial of two cabinet ministers and a retired general who died after contracting the coronavirus disease (COVID-19) in Harare, Zimbabwe January 27, 2021. Picture taken January 27, 2021. REUTERS/Philimon Bulawayo

People walk past a banner outside a hospital during the coronavirus disease (COVID-19) outbreak in Harare, Zimbabwe January 28, 2021. Picture taken January 28, 2021. REUTERS/Philimon Bulawayo

A healthcare worker pushes a trolley at a hospital during the coronavirus disease (COVID-19) outbreak in Harare, Zimbabwe January 28, 2021. Picture taken January 28, 2021. REUTERS/Philimon Bulawayo

Health officials walk between coffins at the burial of two cabinet ministers and a retired general who died after contracting the coronavirus disease (COVID-19) in Harare, Zimbabwe January 27, 2021. Picture taken January 27, 2021. REUTERS/Philimon Bulawayo TPX IMAGES OF THE DAY

Health officials prepare to test mourners at the burial of two cabinet ministers and a retired general who died after contracting the coronavirus disease (COVID-19) in Harare, Zimbabwe January 27, 2021. Picture taken January 27, 2021. REUTERS/Philimon Bulawayo

Zimbabwean President Emmerson Mnangagwa has his temperature taken as he arrives for the presentation of the 2021 National Budget at the parliament in Harare, Zimbabwe, November 26, 2020. REUTERS/Philimon Bulawayo

A man buys cooking oil at a market in Harare, Zimbabwe, November 26, 2020. REUTERS/Philimon Bulawayo

People walk past a money-changers sign at a market in Harare, Zimbabwe, November 26, 2020. REUTERS/Philimon Bulawayo

People walk past a money-changers sign at a market in Harare, Zimbabwe, November 26, 2020. REUTERS/Philimon Bulawayo

Zimbabwe's Finance Minister Mthuli Ncube arrives to present 2021 National Budget to the parliament in Harare, Zimbabwe, November 26, 2020. REUTERS/Philimon Bulawayo

An illegal money changer checks old U.S. dollars at a marketplace in Harare, Zimbabwe, November 26, 2020. REUTERS/Philimon Bulawayo

Containers and other goods are sold beneath a coronavirus disease (COVID-19) awareness billboard at a marketplace in Harare, Zimbabwe, November 26, 2020. REUTERS/Philimon Bulawayo

Zimbabwean comedian Victor Mpofu, aka Doc Vikela, discusses ideas for his next skit with staff at his office in Harare, Zimbabwe, August 20, 2020. REUTERS/MacDonald Dzirutwe/Staff

Zimbabwean comedian Victor Mpofu, aka Doc Vikela, discusses ideas for his next skit with staff at his office in Harare, Zimbabwe, August 20, 2020. REUTERS/MacDonald Dzirutwe/Staff

Zimbabwean comedian Victor Mpofu rehearses for his next skit in his role as President Emmerson Mnangagwa in Harare, Zimbabwe, August 20, 2020. REUTERS/MacDonald Dzirutwe/Staff

Zimbabwean comedian Victor Mpofu rehearses for his next skit in his role as President Emmerson Mnangagwa in Harare, Zimbabwe, August 20, 2020. REUTERS/MacDonald Dzirutwe/Staff

Zimbabwean journalist Hopewell Chin'ono, who was arrested last month for supporting anti-government protests, arrives at court in Harare, Zimbabwe, August 7, 2020. REUTERS/Philimon Bulawayo

Zimbabwean journalist Hopewell Chin'ono, who was arrested last month for supporting anti-government protests, arrives at court in Harare, Zimbabwe, August 7, 2020. REUTERS/Philimon Bulawayo

Zimbabwean journalist Hopewell Chin'ono, who was arrested last month for supporting anti-government protests, arrives at court in Harare, Zimbabwe, August 7, 2020. REUTERS/Philimon Bulawayo

Zimbabwean novelist, Tsitsi Dangarembga, whose latest book "This Mournable Body" has been nominated for a Booker Prize, speaks during an interview with Reuters in Harare, Zimbabwe, August 4, 2020. REUTERS/MacDonald Dzirutwe

Zimbabwean novelist, Tsitsi Dangarembga, whose latest book "This Mournable Body" has been nominated for a Booker Prize, speaks during an interview with Reuters in Harare, Zimbabwe, August 4, 2020. REUTERS/MacDonald Dzirutwe

A police officer checks a vehicle ahead of planned anti-government protests during the coronavirus disease (COVID-19) outbreak in Harare, Zimbabwe, July 31, 2020. REUTERS/Philimon Bulawayo

Police officers check bus passengers ahead of planned anti-government protests during the coronavirus disease (COVID-19) outbreak in Harare, Zimbabwe, July 31, 2020. REUTERS/Philimon Bulawayo

Police officers patrol the street ahead of planned anti-government protests during the coronavirus disease (COVID-19) outbreak in Harare, Zimbabwe, July 31, 2020. REUTERS/Philimon Bulawayo

A policeman turns away people from the city centre ahead of planned anti-government protests during the coronavirus disease (COVID-19) outbreak in Harare, Zimbabwe, July 30, 2020. REUTERS/Philimon Bulawayo

A policewoman turns away people from the city centre ahead of planned anti-government protests during the coronavirus disease (COVID-19) outbreak in Harare, Zimbabwe, July 30, 2020. REUTERS/Philimon Bulawayo

A soldier patrols the streets ahead of planned anti-government protests during the coronavirus disease (COVID-19) outbreak in Harare, Zimbabwe, July 30, 2020. REUTERS/Philimon Bulawayo

A soldier checks pedestrians ahead of planned anti-government protests during the coronavirus disease (COVID-19) outbreak in Harare, Zimbabwe, July 30, 2020. REUTERS/Philimon Bulawayo

Soldiers patrol the streets ahead of planned anti-government protests during the coronavirus disease (COVID-19) outbreak in Harare, Zimbabwe, July 30, 2020. REUTERS/Philimon Bulawayo

Police check cars at a roadblock ahead of planned anti-government protests during the coronavirus disease (COVID-19) outbreak in Harare, Zimbabwe, July 30, 2020. REUTERS/Philimon Bulawayo

A policeman checks the papers of bus passengers at a roadblock during the coronavirus disease (COVID-19) outbreak in Harare, Zimbabwe, July 24, 2020. REUTERS/Philimon Bulawayo

Police and soldiers check bus passengers at a roadblock during the coronavirus disease (COVID-19) outbreak in Harare, Zimbabwe, July 24, 2020. REUTERS/Philimon Bulawayo

A policeman checks the papers of bus passengers at a roadblock during the coronavirus disease (COVID-19) outbreak in Harare, Zimbabwe, July 24, 2020. REUTERS/Philimon Bulawayo

A policeman talks to a bus driver at a roadblock during the coronavirus disease (COVID-19) outbreak in Harare, Zimbabwe, July 24, 2020. REUTERS/Philimon Bulawayo

Bus passengers queue as they wait to produce their papers at a police roadblock during the coronavirus disease (COVID-19) outbreak in Harare, Zimbabwe, July 24, 2020. REUTERS/Philimon Bulawayo

Police and soldiers check on motorists at a roadblock during the coronavirus disease (COVID-19) outbreak in Harare, Zimbabwe, July 24, 2020. REUTERS/Philimon Bulawayo

Health workers carry placards as they protest against economic hardship and poor working conditions during the coronavirus disease (COVID-19) outbreak in Harare, Zimbabwe July 6, 2020. REUTERS/Philimon Bulawayo

Health workers carry placards as they protest against economic hardship and poor working conditions during the coronavirus disease (COVID-19) outbreak in Harare, Zimbabwe July 6, 2020. REUTERS/Philimon Bulawayo

Health workers protest against economic hardship and poor working conditions during the coronavirus disease (COVID-19) outbreak in Harare, Zimbabwe, July 6, 2020. REUTERS/Philimon Bulawayo

A health worker carries disinfectant equipment outside a hospital during the coronavirus disease (COVID-19) outbreak in Harare, Zimbabwe, July 6, 2020. REUTERS/Philimon Bulawayo

Health workers carry placards as they protest against economic hardship and poor working conditions during the coronavirus disease (COVID-19) outbreak in Harare, Zimbabwe, July 6, 2020. REUTERS/Philimon Bulawayo TPX IMAGES OF THE DAY

A health worker carries a placard during a protest against economic hardship and poor working conditions during the coronavirus disease (COVID-19) outbreak in Harare, Zimbabwe, July 6, 2020. REUTERS/Philimon Bulawayo

Police arrest a health worker during a protest against economic hardship and poor working conditions during the coronavirus disease (COVID-19) outbreak in Harare, Zimbabwe,July 6, 2020. REUTERS/Philimon Bulawayo

Police arrest a health worker during a protest against economic hardship and poor working conditions during the coronavirus disease (COVID-19) outbreak in Harare, Zimbabwe,July 6, 2020. REUTERS/Philimon Bulawayo

A worker walks between solar panels at Centragrid power plant in Nyabira, Zimbabwe, June 23, 2020. REUTERS/Philimon Bulawayo

A worker walks between solar panels at Centragrid power plant in Nyabira, Zimbabwe, June 23, 2020. REUTERS/Philimon Bulawayo

A worker walks between solar panels at Centragrid power plant in Nyabira, Zimbabwe, June 23, 2020. REUTERS/Philimon Bulawayo

A worker walks past solar panels at Centragrid power plant in Nyabira, Zimbabwe, June 22, 2020. Picture taken June 22, 2020. REUTERS/Philimon Bulawayo