Over 1.5 million children worldwide have lost at least one parent, custodial grandparent, or grandparent, due to COVID-19, a study published in The Lancet said. "For every two COVID-19 deaths worldwide, one child is left behind to face...death of...parent/caregiver," study's lead author Susan Hillis said. The nations with the highest numbers of kids losing primary caregivers included India and US.