On April 29, 2022, Prof. Dr. Yong Phuworawan, head of the Center specializes in clinical virology. Department of Pediatrics Faculty of Medicine Chulalongkorn University, COVID-19, Vaccine, Immunization against Omicron BA.1 and BA.2
Our study is published in the Journal of Infectious Disease (JID), the leading journal. is a study of immunity In the actuator needle (third needle) connect Omikron BA.1 and BA.2.
We found that the current outbreak in Thailand is almost 100 percent of the BA.2 strain. As shown in the figure we conducted the research study.
However, when looking at the effect of immunity against BA.1 and BA.2 strains, it was found that immunity to BA.2 strains obtained from the booster vaccine was 1.7 times lower than that of BA.1 strains. The viral mutation reduced the vaccine’s effectiveness a bit further.
Detailed information can be read from the journal at the following URL: https://academic.oup.com/…/10.1093/infdis/jiac158/6575160
