Dr Yong recommends mRNA as booster dose
Expert virologist Dr Yong Poovorawan wrote on his Facebook page on Thursday that people should get an mRNA vaccine booster dose instead of three doses of AstraZeneca.
Yong said administering AstraZeneca as a booster for people who have received two doses of AstraZeneca (Triple A) did not provide a high level of immunity.
He said the immunity provided by two AstraZeneca doses would decrease over time. And after receiving an AstraZeneca booster dose, immunity increases by “one log scale or a little higher” than after receiving two doses of the vaccine.
Yong claimed a study by Chulalongkorn University’s Centre of Excellence in Clinical Virology produced the same result as a study by Oxford University on booster doses.
He said people should get an mRNA booster dose to increase their immunity by “two log scales”.
However, some do not want an mRNA booster so they should at least receive a third dose of AstraZeneca, which is better than not receiving a booster at all, he added.
