As the world struggles with ways to stem the spread of the new Omicron variant, the U.S. Centers of Disease Control and Prevention announced Tuesday that international travelers to the United States will soon have to provide a negative result from a coronavirus test taken within 24 hours of departure. That’s a much tighter turnaround:…  read on >  read on >

Extreme heat brings a jump in emergency room visits by adults of all ages, a new study shows. While it’s well known that extreme heat puts adults aged 65 and older at increased risk of hospitalization and death, it’s been less clear how it affects young and middle-aged adults. To find out, the researchers analyzed…  read on >  read on >

Don’t drive drunk. That’s simple and obvious advice. And it appears ridesharing services are making it easier for people to take it. In a new study that looked at Chicago data, more rideshare trips meant fewer alcohol-involved crashes. “This study was designed to look specifically at drunk driver crashing,” said study author Christopher Morrison. “When…  read on >  read on >

For the first time in more than18 months, fully vaccinated travelers from dozens of other countries can enter the United States on Monday. Visitors will need to show proof of vaccination and a negative coronavirus test taken within three calendar days of travel. Unvaccinated Americans and children under the age of 18 are exempt from…  read on >  read on >

Contaminated water is the leading cause of large-scale outbreaks of infectious diseases that can be transmitted from animals to people, researchers say. These health threats are called zoonotic infectious diseases, and recent outbreaks include COVID-19 and Ebola. “In the age of COVID-19, it is understandable that many people may not realize how many outbreaks of…  read on >  read on >

Climate change is already making Americans sick and researchers warn that the nation must take swift action to protect people’s well-being. “Climate change effects aren’t just an abstraction, something that will happen years from now. They are happening today, and they impact every aspect of your health, from the air you breathe [more smoke, more…  read on >  read on >