More than 600 variant cases of COVID-19 identified in US: CDC

The US has reported at least 618 cases of COVID-19 variants from the UK, Brazil and South Africa across 33 states, according to the Centers for Disease Control and Prevention. Of that total, 611 are the more contagious UK variant known as B.1.1.7, of which there have been 187 cases in Florida and 145 in...