Media Magelang -The efficacy rate of each Covid-19 vaccine has often been an endless debate, both for ordinary people and medical experts.
The use of Moderna's Covid-19 vaccine for the third dose (booster) vaccination for health workers in Indonesia has triggered many doubts about the effectiveness of the China-made Sinovac jab.
According to the records of the Indonesian Doctors Association (IDI), 61 doctors died of exposure to Covid-19 during the February-May 2021 period.
The Thai Red Cross Emerging Infectious Diseases Health Science Center and virologists at BIOTEC published a study that the Sinovac vaccine was less effective against the Delta variant, as quoted by Media Magelang from Thai PBS World, 9 July 2021.
Two doses of the Oxford-AstraZeneca vaccine are considered more effective against the Delta variant of Covid-19 with neutralizing antibody levels reaching 50 percent.
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How Covid-19 vaccine made?
Thailand is considering mixing the Sinovac vaccine (which uses an inactivated virus method) with Oxford-AstraZeneca, which uses the Adenovirus platform that engineered the virus into a vaccine that then infects other viruses.