Sinovac dose, Pfizer booster dose is less effective against Omicron
NEW YORK: A two-dose injection of Sinovac-type COVID-19 vaccine followed by a booster dose of Pfizer-BioNTech showed a lower immune response against Omicron, compared to other variants.
The study was conducted by a group of researchers from Yale University, the Ministry of Health of the Dominican Republic as well as several other institutions.
One of the researchers, Akiko Iwasaki, said in a tweet on Twitter that the CoronaVac vaccine recipients may need two more booster doses to achieve a level of protection against Omicron.
https://asianewstoday.com/sinovac-dose-pfizer-booster-dose-is-less-effective-against-omicron/