By Lehlohonolo Lehana.

The National Institute for Communicable Diseases (NICD), reports 828 new COVID-19 cases that have been identified in South Africa, which brings the total number of laboratory-confirmed cases to 3,732,075. This increase represents a 5.3% positivity rate.

The majority of new cases today are from Gauteng (45%), followed by Western Cape (25%). Kwa-Zulu Natal accounted for 21%; Eastern Cape accounted for 4% and Mpumalanga accounted for 3%.

Free State, Limpopo and North West each accounted for 1% and Northern Cape accounted for less than 1% of today’s new cases.

Due to the ongoing audit exercise by the National Department of Health (NDoH), there may be a backlog of COVID-19 mortality cases reported. Today, the NDoH reports no new deaths. This leaves the total fatalities at 100,096 to date.

Meanwhile Shanghai reported nearly 25,000 locally transmitted COVID-19 infections on Sunday and sought to assure locked-down residents of China's most populous city that supply bottlenecks affecting availability of food and other items would ease.

Streets remained largely silent in the city of 26 million people as curbs under its "zero tolerance" policy allow only healthcare workers, volunteers, delivery personnel or those with special permission to move freely.

Wang Wenbo, a vice president at e-commerce giant JD.com, said at Shanghai's daily briefing that the company is focused on basic foodstuffs and baby care items. Xiao Shuixian, senior vice president at Alibaba Group's. Ele.me, said it has brought in 2,800 more delivery workers in the past week.

COVID-19 case numbers in Shanghai are small by global standards, but the city is battling China's worst outbreak since the virus emerged in the central city of Wuhan in 2019. Of the local cases Shanghai reported on Sunday, 1,006 were symptomatic while 23,937 were classed as asymptomatic, which China counts separately. 

Shanghai has become a test bed for China's COVID-management strategy in the face of the highly infectious Omicron variant as it seeks to test, trace and centrally quarantine all people who test positive, symptomatic or not, to stem the spread of the coronavirus.

The official Xinhua news agency on Sunday warned that an easing of China's "dynamic zero-COVID approach" could be "disastrous", given the danger the Omicron variant posed to people with underlying health conditions, the elderly and unvaccinated.

"China's medical system would risk a collapse leading to enormous loss of life if it gives up on epidemic prevention and control," Xinhua said.

China is sticking with its approach even as other countries seek to live with the virus. Heavy measures such as the separation of COVID-positive children from their parents - a practice it eased last week - have sparked criticism domestically and expressions of concern from diplomats.

Late on Saturday China's foreign ministry expressed "strong dissatisfaction" with the United States after it raised concerns over China's coronavirus control measures.