Though the original strain of SARS-CoV-2 came to Thailand from Wuhan, China in January last year, the UK variant of the virus, which is 1.7 times more contagious and deadlier, sparked the third wave in April. It was found to have infected many patrons of entertainment venues in Bangkok’s Thong Lor area.
On May 5, the Centre for Covid-19 Situation Administration (CCSA) also reported that the Brazilian strain of the virus was found in quarantine facilities.
On May 21, health officials confirmed that workers at a construction camp in Bangkok’s Lak Si area had been infected by the Indian strain.
On May 22, the South African strain was spotted among patients in Narathiwat’s Tak Bai district.