Hong Kong announced Tuesday that it was closing many of its border crossings with mainland China in a bid to contain the Wuhan coronavirus, as the death toll from the outbreak topped 100, with more than 4,500 cases in the mainland.

The total includes the first death in Beijing and 24 more fatalities in Hubei province, where the outbreak has been centered.

Officials with the Utah Department of Health said the state is seeing near-record levels of the flu this year and they're investigating several deaths connected to the virus.

Health officials say the U.S. has five confirmed cases of the new pneumonia-like virus from China. Two new confirmed cases were announced Sunday — one in Los Angeles County in California and the other in Arizona.

Officials with the Weber-Morgan Health Department said the deaths of two northern Utah students are under investigation as suspected flu-associated deaths.

Cities from the outbreak's epicenter in central China to Hong Kong are scrambling to contain an illness that has infected more than 1,200 people and killed 41.

China is expanding its lockdown against the deadly new virus to an unprecedented 36 million people and rushing to build a prefabricated, 1,000-bed hospital for victims as the outbreak cast a pall over Lunar New Year, the country's biggest and most festive holiday.

Imagine if you learned that your child's life-threatening disease could now be treated. That's the news thousands of parents received about a breakthrough therapy for cystic fibrosis. But as the drug hits the market, what are the unknowns?

The second U.S. patient sick with the new virus from China is a Chicago woman in her 60s. Health officials say the woman started feeling sick a few days after she returned home to Chicago early last week from a trip to China.

People living with a severe allergy know it can be paralyzing and control everyday life. One Utah family credits their recently found freedom to a new oral therapy.