US could be on cusp of dreaded Covid surge, expert warns

The US may be on the cusp of another Covid-19 case surge, one expert says — a surge that health officials have repeatedly warned about as state leaders eased restrictions and several lifted mask mandates.The US may be on the cusp of another Covid-19 case surge, one expert says — a surge that health officials have repeatedly warned about as state leaders eased restrictions and several lifted mask mandates.