A healthcare worker at a Covid-19 testing facility in Shanghai, China, on March 10. Bloomberg News China has discussed diverting international flights away from Shanghai to other cities, as the financial center’s growing omicron outbreak puts pressure on quarantine hotels and isolation facilities, according to people familiar with the matter. The country’s aviation authority asked airlines to nominate alternative ports of arrival for Shanghai flights, the people said, asking not to be named as the discussions were confidential. Passenger routes from Hong Kong won’t be affected, they said. One of the people said flights from Macau and Taiwan would also be exempted. Officials cited stretched capacity at the quarantine hotels all travelers into China are required to isolate in, and concerns that space may be needed if the outbreak in Shanghai worsens. China isolates all virus cases, including those in the community, as part of its Covid Zero policy. […]