TEHRAN, Iran, March 1: Iran’s health ministry raised on Sunday the nationwide death toll from the new coronavirus to 54 as the number of confirmed infected cases jumped overnight by more than half to 978 people.

WASHINGTON, Feb 26: Scientists can’t tell yet how deadly the new virus that’s spreading around the globe really is — and deepening the mystery, the fatality rate differs even within China.

BEIJING, Jan 21: Countries in Asia and elsewhere have begun body temperature checks at airports, railway stations and along highways in hopes of catching people carrying a new coronavirus that is believed to have spread from Wuhan in central China and sickened more than 290 people in that country. The recent confirmation that the disease can spread between humans has heightened fears as millions of Chinese travel during the annual Lunar New Year holiday.