Covid-19 4th wave: China detects new Omicron subtype BA.1.1 as cases exceed 12,000 mark - China has sent the military and thousands of healthcare workers into Shanghai to help carry out COVID-19 tests for all of its 26 million residents.
Covid-19 4th wave: Shanghai orders citizens to self-test for infections amid surge in cases - Shanghai on Sunday reported 7,788 asymptomatic cases, up from 6,501 the day before, while symptomatic cases rose to 438 from 260.