US sees chilling signs of a fresh Covid surge, again

For more than a year, the US has battled a ruthless enemy: a novel virus that took no mercy on American communities, crippled hospital systems and took the lives of more than half a million people.For more than a year, the US has battled a ruthless enemy: a novel virus that took no mercy on American communities, crippled hospital systems and took the lives of more than half a million people.