When will it be safe for the world's children to be vaccinated against COVID-19? The World Health Organization's chief scientist, Dr. Soumya Swaminathan, says that vaccines are being tested in children down to the age of six or even lower, and promises that data on children will be shared as soon as it's available. She also notes that there are not enough studies on transmission in schools, and the WHO has advised governments to prioritize schools "over other things like shopping malls or cinema halls or pubs." Dr. Swaminathan spoke with Ian Bremmer in an interview on GZERO World, airing on US public television stations starting April 9. Check local listings.

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