US Covid-19 cases rise by 47,000, biggest one-day spike of pandemic

CORONAVIRUS | New US Covid-19 cases rose by more than 47,000 on Tuesday, according to a Reuters tally, the biggest one-day spike since the start of the pandemic, as the government's top infectious disease expert warned that number could soon double.

California, Texas and Arizona have emerged as the new US epicentres of the pandemic, reporting record increases in Covid-19 cases...