Inoculation with two doses of China’s Sinovac vaccine can boost the neutralizing antibody level to 80-90% and provide immunity to the Alpha variant of the COVID-19 virus to some extent, but cannot fend off the highly contagious Delta variant, which is becoming dominant in Thailand and many other parts of the world, said a prominent Thai doctor today (Friday).

Two doses of the UK’s Oxford-AstraZeneca vaccine can, however, immunize people, with neutralizing antibody levels of over 90%, against the virulent Delta variant, according to Head of the Thai Red Cross Emerging Infectious Diseases Health Science Centre, Professor Dr. Thiravat Hemachudha, who conducted a joint study with Dr. Anan Jongkaewwattana, a virologist at BIOTEC.

Full story: thaipbsworld.com

By Thai PBS World