The US death toll from Covid-19 surpassed a grim new milestone of 250,000 lives lost on Wednesday, as New York City's public school system, the nation's largest, called a halt to in-classroom instruction, citing a jump in infection rates.
The decision to shutter schools and revert exclusively to at-home learning, starting on Thursday, came as state and local officials nationwide imposed restrictions on social and economic life to tamp down a surge in cases and hospitalizations heading into winter.
Governor Tim Walz of Minnesota ordered all restaurants, bars, fitness centers and entertainment venues closed, and all youth sports canceled, for