The World Health Organisation's chief scientist has advised people not to mix and match COVID-19 vaccines from different manufacturers, calling it a "dangerous trend" as there's little data about the health impact.
"It's a little bit of a dangerous trend here. We are in a data-free, evidence-free zone as far as mix and match," Soumya Swaminathan told an online briefing.
"It will be a chaotic situation in countries if citizens start deciding when and who will be taking a second, a third and a fourth dose."
Hong Kong court finds tycoon Jimmy Lai guilty in landmark security trial
School bus accident in Colombia kills 17, injures 20
Australia plans tougher gun laws after father and son kill 15 at Bondi Beach
Police to release man detained over Brown University mass shooting
Shooting at Australia's Bondi Beach kills 12
