Health

The new rule, which takes effect on Monday, will apply to Americans as well as foreign nationals. The United States will require all airline passengers arriving from Britain to test negative for the coronavirus within 72 hours of their departure, the Centers for Disease Control and Prevention said on Thursday. …

In mid-December, before a key vote by an advisory panel for the Centers for Disease Control and Prevention, a public debate flared up over what might well be the most momentous policy decision of 2021: how to distribute the Covid-19 vaccine. This particular fight centered on how to balance the …

Researchers warn that the British variant is so contagious that new control measures, including closing down schools and universities, may be necessary. A team of British scientists released a worrying study on Wednesday of the new coronavirus variant sweeping the United Kingdom. They warned that the variant is so contagious …

Conditions like hypertension, high cholesterol, obesity and diabetes in a father may affect whether a pregnancy reaches full term. A father’s poor health before conception may increase the risk for pregnancy loss, a new study suggests. Researchers analyzed records from an employee insurance database that included data on 958,804 pregnancies …

Including high-intensity training in your workouts provided better protection against premature death than moderate workouts alone. If you increase your heart rate, will your life span follow? That possibility is at the heart of an ambitious new study of exercise and mortality. The study, one of the largest and longest-term …

The company could provide at least tens of millions of additional doses of a coronavirus vaccine under an agreement that would give it better access to the supplies it needs to expand manufacturing. The Trump administration and Pfizer are close to a deal under which the pharmaceutical company would bolster …

The company could provide at least tens of millions of additional doses of a coronavirus vaccine under an agreement that would give it better access to the supplies it needs to expand manufacturing. The Trump administration and Pfizer are close to a deal under which the pharmaceutical company would bolster …

Officials are racing to secure more I.C.U. beds after an explosion of infections caused a bottleneck of patients. If cases aren’t brought under control, the government may impose Level 3 restrictions for the first time in South Korea. SEOUL, South Korea — In several provinces across South Korea, there are …

Christie Smythe helped break the story of Mr. Shkreli’s arrest in 2015. Then she “started to fall for him,” she said, and quit her job at Bloomberg News. “Your Honor, finding love with Martin was a great joy for me.” In April the journalist Christie Smythe wrote those words to …