Thailand has changed its vaccine policy to mix China’s Sinovac with the AstraZeneca vaccine in a bid to boost protection.
The decision comes after hundreds of medical workers caught Covid despite being fully vaccinated with Sinovac.
Instead of two Sinovac shots, people will now receive the AstraZeneca vaccine after their first Sinovac shot.
Health workers already fully vaccinated with Sinovac will also receive a third booster from a different vaccine.
https://www.bbc.co.uk/news/world-asia-57801251
I believe Chile was using sinovac, yet they still had a massive upswing of covid cases.
It would seem sinovac is almost useless.