- WHO warns against mixing and matching COVID-19 vaccines Daily Mail
- Thailand to boost Sinovac with AstraZeneca as Delta variant drives worst COVID-19 outbreak ABC News
- Thailand Defends Mixing Covid Shots After WHO Warns Against "Dangerous Trend" NDTV
- Thailand plans to mix Sinovac and AstraZeneca Covid-19 vaccines. Critics say that's risky CNN
- Which batch of vaccines are not valid for travel and how to find out? The Independent
- View Full coverage on Google News
