Residents from the Alexandra township in Johannesburg gather in a stadium to be tested for COVID-19 Monday, April 26, 2020. South Africa will began a phased easing of its strict lockdown measures on May 1, although its confirmed cases of coronavirus continue to increase. (AP Photo/Jerome Delay)

Residents from the Alexandra township in Johannesburg gather in a stadium to be tested for COVID-19 Monday, April 26, 2020. South Africa will began a phased easing of its strict lockdown measures on May 1, although its confirmed cases of coronavirus continue to increase. (AP Photo/Jerome Delay)

A health worker stands outside a stadium where residents from the Alexandra township in Johannesburg have lined up to be tested for COVID-19 Monday, April 26, 2020. South Africa will began a phased easing of its strict lockdown measures on May 1, although its confirmed cases of coronavirus continue to increase. (AP Photo/Jerome Delay)

Residents from the Alexandra township in Johannesburg gather in a stadium to be tested for COVID-19 Monday, April 26, 2020. South Africa will began a phased easing of its strict lockdown measures on May 1, although its confirmed cases of coronavirus continue to increase. (AP Photo/Jerome Delay)

Residents from the Alexandra township in Johannesburg gather in a stadium to be tested for COVID-19 Monday, April 26, 2020. South Africa will began a phased easing of its strict lockdown measures on May 1, although its confirmed cases of coronavirus continue to increase. (AP Photo/Jerome Delay)

Residents from the Alexandra township in Johannesburg gather in a stadium to be tested for COVID-19 Monday, April 26, 2020. South Africa will began a phased easing of its strict lockdown measures on May 1, although its confirmed cases of coronavirus continue to increase. (AP Photo/Jerome Delay)

Residents from the Alexandra township in Johannesburg gather in a stadium to be tested for COVID-19 Monday, April 26, 2020. South Africa will began a phased easing of its strict lockdown measures on May 1, although its confirmed cases of coronavirus continue to increase. (AP Photo/Jerome Delay)

A health worker stands outside a stadium where residents from the Alexandra township in Johannesburg have lined up to be tested for COVID-19 Monday, April 26, 2020. South Africa will began a phased easing of its strict lockdown measures on May 1, although its confirmed cases of coronavirus continue to increase. (AP Photo/Jerome Delay)