Beijing launched mass Covid-19 testing in some areas on Friday and Shanghai was testing all hospital staff as China battles its worst outbreak of the disease since March, with families fretting over Lunar New Year reunion plans amid new curbs, Reuters reports.

Mainland China reported a slight decline in new daily Covid-19 cases on Friday — 103 from 144 infections a day earlier.

Of the new cases, 94 were local transmissions, Heilongjiang province in the northeast reported 47 new cases, while Shanghai reported six new cases and the capital, Beijing, reported three new cases.

Long queues formed in some districts in Beijing, where mass testing was launched following several consecutive days of new cases. City officials said there were some “leaks” in epidemic control in some rural areas, with inadequate adherence to rules on wearing masks, social distancing and temperature checks.