Covid-19: Vietnam says latest virus outbreak caused by hybrid of UK and Indian variants | Stuff.co.nz
https://www.stuff.co.nz/national/health/coronavirus/300320473/covid19-vietnam-says-latest-virus-outbreak-caused-by-hybrid-of-uk-and-indian-variants
Vietnam Detects New Highly Transmissible Coronavirus Variant : Coronavirus Updates : NPR
https://www.npr.org/sections/coronavirus-live-updates/2021/05/29/1001590855/vietnam-detects-new-highly-transmissible-coronavirus-variant