After months of progress in the fight against Covid-19, cases are rising again as the highly contagious Delta variant spreads across the US. States with below-average vaccination rates have almost triple the rate of new Covid-19 cases compared to states with above-average vaccination rates, according to new data from Johns Hopkins University. As of Sunday, states with lower rates of vaccination reported an average of 6 new cases per 100,000 residents every day over the past week, according to Johns Hopkins. States with higher vaccination rates reported an average of 2.2 new cases per 100,000 residents each day over the...