NEW YORK – Top officials overseeing child welfare at the Department of Health and Human Services say they’ve seen no solid evidence to bear out warnings that serious forms of child abuse would surge during the coronavirus pandemic.Lynn Johnson, HHS assistant secretary for children and families, and Jerry Milner, associate commissioner of HHS’ Children’s Bureau, spoke with The Associated Press on Thursday, shortly before they leave their jobs amid the change in administrations.Back in March, when COVID-19 forced schools to close and many children to be locked down in households buffeted by job losses, many child-welfare experts warned of a likely surge of child abuse perpetrated by harried parents and other caretakers.Johnson and Milner said.