Top US virus expert warns of 'serious problem' as cases surge

HOUSTON - America's top infectious diseases expert has warned the United States is facing a "serious problem" from a resurgent coronavirus as the illness puts the brakes on reopening two of the country's largest states.

Top US virus expert warns of 'serious problem' as cases surge
HOUSTON - America's top infectious diseases expert has warned the United States is facing a "serious problem" from a resurgent coronavirus as the illness puts the brakes on reopening two of the country's largest states.