![Long Beach Airport (LGB), offers COVID-19 testing to travelers going to any destination, in Long Beach, Calif., on Monday, Jan. 18, 2021. EMT Karly Morrow swabs a client at the testing site. (Brittany Murray /The Orange County Register via AP)](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/F5EZATBROMR554A3S4Z747ILI4.jpg?smart=true&auth=5d060816876e6d2d67930d98f9605fab53cb2402cfbf996e12b988d57329b5ef&width=400&height=225)
Long Beach Airport offers Covid-19 testing to travellers in Long Beach, California, January 18, 2021. The Orange County Register via AP
Long Beach Airport offers Covid-19 testing to travellers in Long Beach, California, January 18, 2021. The Orange County Register via AP
US falters in testing to detect dangerous Covid mutations
First known US case of variant from Brazil was detected while California is investigating possible new American strain
Bloomberg
26 January, 2021