Sinovac and AstraZeneca: The 2 primarly Covid-19 vaccines in Thailand

Since Thailand started its mass Covid-19 immunisation campaign in late February, the Chinese-made Sinovac vaccine and the AstraZeneca vaccine, made in partnership with the UK’s Oxford University, have been used to vaccinate residents in Thailand.

The local firm Siam Bioscience is now producing the AstraZeneca vaccine and the first Thai-made batch is expected to be rolled out next month.

Type of vaccine

AstraZeneca: A recombinant vaccine from a modified chimpanzee adenovirus.

This is a harmless, weakened adenovirus that usually causes the common cold in chimpanzees. The adenovirus vaccine vector, known as ChAdOx1, was chosen as a suitable vaccine technology for a SARS-CoV-2 vaccine as it has been shown to generate a strong immune response from one dose in other vaccines. It has been genetically changed so that it is impossible for it to grow in humans. – Australian Department of…