Los Angeles and San Diego schools to remain online-only in autumn

California’s two largest school districts, Los Angeles and San Diego, announced on Monday that classes will remain online-only throughout the fall, pointing to a surge in coronavirus cases that could affect teachers as well as students. “There’s a public health imperative to keep schools from becoming a petri dish,” said Austin Beutner, the school superintendent in Los Angeles, whose county is home to more than a third of the state’s coronavirus…