Cities in China's most populous province of Guangdong have locked down compounds and streets and ordered some travellers to furnish negative COVID-19 test results, as health officials battle to control outbreaks.
All 10 of China's locally confirmed mainland cases on June 1 were in southern Guangdong, the National Health Commission said on Wednesday, seven in the provincial capital of Guangzhou and three in the nearby city of Foshan.
China's manufacturing and export hub and its biggest province by economic output, Guangzhou has stepped up coronavirus prevention and control efforts since the latest wave of cases struck in late May.
It has reported 41 locally confirmed cases between May 21 and June 1, and Foshan six cases.
The two cities have ordered home quarantine for residents of some neighbourhoods, and asked people leaving by air, rail or long distance road journeys for proof of a negative COVID-19 test within three days.
The cases have spurred city residents without vaccine appointments to flock to inoculation sites. Crowds have been "severe" at some spots, regional disease control official Zhang Zhoubin told reporters on Tuesday.
Guangzhou has suspended individual appointments and made key groups a vaccination priority, so as to ensure adequate numbers of medical staff.
The provincial city of Maoming detected an asymptomatic infection on May 25 that proved to have been in contact with a confirmed patient in Guangzhou.
Officials of Sinopec's Maoming refinery, one of China's biggest, said they had imposed stringent COVID-19 measures and were urging staff to get vaccinated as soon as possible. All its workers at the Maoming port have been vaccinated.
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