WHO chief scientist Soumya Swaminathan said that mixing of different COVID-19 vaccines was a "little bit of a dangerous trend". She said, "We are in a data-free, evidence-free zone as far as mix and match (is concerned)." She added, "It'll be a chaotic situation...if citizens start deciding when and who'll be taking a second, a third and a fourth dose."
WHO chief scientist Soumya Swaminathan said that mixing of different COVID-19 vaccines was a "little bit of a dangerous trend". She said, "We are in a data-free, evidence-free zone as far as mix and match (is concerned)." She added, "It'll be a chaotic situation...if citizens start deciding when and who'll be taking a second, a third and a fourth dose."