Thai Health Ministry Says Using Sinovac-Astra Zeneca Successful

Thailand’s Health Ministry said on Thursday that its COVID-19 mixed dose of Sinovac and AstraZeneca was safe and successfully boosted the immunity of the first 1.5 million recipients.

The Health Ministry also announced it would no longer administer two jabs of Sinovac vaccine and use the mixed dose instead in tackling the Delta variant.

Public Health Permanent Secretary Dr. Kiatiphum Wongrajit said the decision to use mixed Sinovac and AstraZeneca vaccines was based on “its effectiveness and safety,” and to alleviate the vaccine shortage that was threatening the rollout program.

Supakij Sirilak, Director-General of the Department of Medical Sciences, said a study of the effectiveness of the mixed dose and the administration of a booster shot with a different vaccine was complete, pending publication.

“Sinovac and AstraZeneca mix was the best combination under current circumstances to speed up immunity,” Sirilak told Bangkok Post.

The government reported administering over 865,000 doses of vaccines on Thursday, increasing the total administered doses to over 34 million.

The government said it would purchase 100 million doses of COVID-19 vaccines in 2021, with 61 million AstraZeneca, 19 million Sinovac, and 20 million Pfizer.

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