Prognosis
Covid-Mutation Risk Drives Rush to Test Travelers From China
- UK, France join list of countries monitoring arriving flights
- China says it’s sharing sequences with the whole world
Travelers from Shanghai, China, take a Covid-19 test at Narita International Airport in Japan.
Photographer: Kiyoshi Ota/BloombergThis article is for subscribers only.
Covid-19 testing requirements for passengers traveling from China highlight mounting concerns about the potential for undetected new strains of the virus spawned by the country’s burgeoning outbreak.
When the US imposed requirements for travelers from China to show negative test results, it also expanded a program that collects voluntary samples from international passengers at airports to help monitor variants entering the country. On Saturday, Canada said travelers from China, Hong Kong and Macau will need to produce a negative covid test, while Morocco went even further with a ban on visitors from China.