Vice President Pence has summoned the CEOs of major airlines to the White House on Wednesday to talk about data used to track down the fellow passengers of people later found to have coronavirus.
After Super Tuesday, Joe Biden and Bernie Sanders are the front-runners. U.S. financial markets fell again on concerns over the coronavirus outbreak. And, details of a new development in medicine.
As the world watches the outbreak of a novel coronavirus, epidemiologists are watching simulations of that outbreak on their computers to try to predict what might happen next.
The coronavirus response has been marred by a delayed rollout of an effective test for those who may have been exposed. It's created uncertainty and left some who were exposed to the disease untested.
The country has been reeling from pressure reimposed by the Trump administration. Now it is scrambling to cope with the virus that has killed dozens of Iranians, including a senior official.
Maine passed a new law last year to increase childhood immunization rates. The law, not yet in effect, would forbid religious and philosophical exemptions — if it's not repealed on Super Tuesday.