Thai Government Wants To Mix COVID-19 Vaccines, But Critics Think That Is A Bad Idea

In an effort to ease public concern about the use of the untested strategy, a virologist and adviser to Thailand’s government endorsed a plan to mix doses of AstraZeneca and Sinovac coronavirus vaccines.
While no research has been released specifically about mixing the two types, an increasing number of countries are looking into mix-and-match approaches to protect against highly transmissible variants, with Vietnam the latest.
Yong Poovorawan, a virology expert at Chulalongkorn University, said 1,200 people in Thailand had already received the Sinovac-AstraZeneca combination — in a different order — mainly because of allergic reactions that required them to change vaccines.
Yong said there were no serious side effects, which indicates that it is safe to use.
Researchers reported that a shot of the inactivated vaccine from Sinovac followed by a shot of AstraZeneca’s viral vector vaccine resulted in a similar buildup of antibodies to receiving two doses of the AstraZeneca shot.
Thailand recently announced it would adopt the combination.
Critics, however, called that risky.
“Thai people are not being used as test subjects,” said Rewat Wisutwet, a doctor and member of the Seri Ruam Thai Party.
Nearly 700 comments were posted on Facebook by health authorities in Nonthaburi, a province bordering Bangkok, about offering the Sinovac-AstraZeneca mix to 20,000 people.
One post read: “I’m not a lab mouse.” Another said: “This is like playing with people’s lives.”
“If the first dose is Sinovac, please cancel it.” wrote another.
China’s Sinovac did not respond to Reuters’ request for comment on the Thai plan, while AstraZeneca said vaccine policy was up to each country.
Nearly 700 comments were posted on Facebook by health authorities in Nonthaburi, a province bordering Bangkok, about offering the Sinovac-AstraZeneca mix to 20,000 people.
One post read: “I’m not a lab mouse.” Another said: “This is like playing with people’s lives.”
“If the first dose is Sinovac, please cancel it.” wrote another.
The Chinese vaccine manufacturer Sinovac did not respond to Reuters’ request for comment on the Thai plan recently, and AstraZeneca said vaccine policy was up to each country.

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