Beijing has more than doubled it coronavirus testing capabilities to 1 million people a day, as the authorities pull out all the stops to contain the outbreak. All of the city’s 124 nucleic acid testing institutes are now fully operational and each is capable of processing 230,000 samples a day, up from 100,000 about a fortnight ago, the municipal health bureau said on Sunday. “If we do combined detection with five mixed samples at a time, we can test a million people a day,” spokesman Gao Xiaojun said. China’s ability to process huge numbers of samples was exemplified last month when authorities in Wuhan tested 10 million residents in the second half of May. In contrast, the US has tested about 25 million people to date. US President Donald Trump said on Saturday that testing was a “double-edged sword” as it led to the identification of more cases. In Beijing, almost 2.3 million people – about 10 per cent of the city’s population – were tested for Covid-19 between June 13 and Friday, the municipal government said. The samples were collected by close to 7,500 medical workers at 2,100 sites. The Chinese capital confirmed 22 new infections on Saturday, as well as three suspected cases and three asymptomatic ones, taking the total to 227 since June 11. Two of the Beijing cases came from a PepsiCo factory in Daxing district. Fan Zhimin, director of corporate affairs at PepsiCo Greater China, said on Sunday that the plant suspended production on June 15, the same day a Covid-19 case was confirmed there. He did not say how many cases had since been identified but said the entire factory had been disinfected and staff were working from home where possible. PepsiCo China said in a statement that the Daxing factory produced snacks and that the company had reported no infections at any of its sites involved in drinks production. China as a whole reported 26 new cases on Saturday, the National Health Commission said on Sunday. Three of the four non-Beijing infections were identified in the neighbouring province of Hebei but traced to the Xinfadi wholesale food market where the fresh outbreak began, health authorities in Hebei said. Beijing has returned to partial lockdown mode in a bid to control the contagion, closing down not only Xinfadi but several schools and dozens of residential compounds. Anyone who worked at the market or visited it since May 30, as well as residents in nearby communities are required to take nucleic acid tests. Employees of restaurants, grocery stores, wholesale markets and food delivery companies are also being tested. More than 100,000 workers at 17 delivery companies in Beijing were expected to take nucleic acid tests between Friday and Monday, but as of Saturday none had been confirmed as being infected, the State Post Bureau said. Taxi hailing company Didi Chuxing said it would provide free nucleic acid tests for all its registered drivers. Coronavirus may be here for much longer – due to rapid mutations Meanwhile, Beijing has implemented a policy requiring anyone who wants to leave the city to provide a negative test result. As a result, many residents, who had neither links to the market or lived nearby have registered for coronavirus testing. Since Xinfadi was closed on June 13, authorities in the capital have opened five temporary markets selling fruit and vegetables to ensure a stable food supply. The massive wholesale market previously handled about two-thirds of the city’s fresh vegetables and fruit. Wang Hongcun, an inspector from the city’s commerce bureau, said on Friday that although the supply of vegetables had fallen because of the closure of Xinfadi it remained stable. Several major supermarkets in Beijing had increased their supply of vegetables by as much as 80 per cent to help meet demand, he said.