Scientists find how to protect against Delta strain of COVID

Researchers from the Thai Red Cross Emerging Infectious Diseases Health Science Centre and the National Center for Genetic Engineering and Biotechnology of Thailand have found that two doses of Sinovac, plus a booster dose of AstraZeneca, can prevent the Delta infection, Report informs referring to foreign media.

Vaccination with two doses of China’s Sinovac vaccine can boost the neutralizing antibody level to 80-90 percent and provide immunity to the Alpha variant of the COVID-19 virus to some extent. Still, it cannot fend off the highly contagious Delta variant.

Two doses of the AstraZeneca vaccine can, however, immunize people, with neutralizing antibody levels of over 90 percent, against the virulent Delta variant, according to Head of the Thai Red Cross Emerging Infectious Diseases Health Science Centre, Professor Dr. Thiravat Hemachudha.