Chinese COVID-19 vaccines can be upgraded for variants in two months

Chinese COVID-19 vaccines can be upgraded for variants in two months 1 Special: Battle Against Novel Coronavirus China’s COVID-19 vaccines based on the inactivated virus can be upgraded to cope with new variants in about two months, the Global Times reported on Tuesday, citing an expert with the Chinese Center for Disease Control and Prevention (CDC). There are concerns that the new variants of the novel coronavirus in the UK and South Africa may dampen the effectiveness of COVID-19 vaccines developed by global drug companies over the last year. New variants of the virus have been spreading fast in several…