Two Chinese #COVID19 vaccines less effective against Delta variant compared with other strains: Researcher pic.twitter.com/jvfyKrGIOF#โควิดวันนี้ #ล็อกดาวน์กรุงเทพ
— Bangkok Lad (@bangkoklad) June 25, 2021
@BangkokPostNews
·15h
Infections with the Delta #COVID19 variant, first detected in India, have been found in more than 20 provinces in #Thailand since April. #BangkokPost #Thailand #coronavirus
