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."
Israel carries out rare airborne raid in Lebanon; 16 killed in strikes
US skips congressional review to approve arms sale to Israel
Russia hits Ukraine with drones, missiles, kills at least seven in Kharkiv
Partial resumption of air navigation in Qatar
Kuwait and Qatar thwart fresh wave of Iranian attacks
After a week of war, Trump demands Iran's 'unconditional surrender'
Ex-rapper's party set to sweep Nepal election
Israeli airforce pounds Beirut, Lebanon death toll rises
