A contagious new COVID-19 variant called NB.1.8.1, aka "Nimbus," is now dominant in the United States, CDC data show. What to know about symptoms and vaccines.

Aim To examine symptoms indicative of respiratory tract and gastrointestinal infections and determine risk factors for such symptoms in elite cross-country skiers. Methods Self-reported training and ...

Altitude sickness is a serious condition for hikers. But what if it's not altitude sickness? This deadly condition with ...

A devastating hiking accident on Mount Whitney has left a 14-year-old California boy clinging to life after altitude-induced ...

A 14-year-old boy in the US is in a medically induced coma after walking off a 120-foot slope right in front of his father ...

The father of a teenager who walked off a 120-foot slope has spoken about the terrifying words he uttered shortly before the ...

A California teen is in a medically induced coma after walking off a 120-foot slope right in front of his terrified father ...

A high altitude rescue involving a Blackhawk helicopter occurred Wednesday morning at Snowmass Lake, after a 17-year-old was ...

Its symptoms are diarrhea and stomach cramps. "Although healthy individuals may suffer only short-term illness, exposure to high levels of foodborne B. cereus can cause death," the FDA said.

Background/aims The study aims to investigate changes in the optic nerve sheath diameter (ONSD) at high altitude and to assess correlation to optic disc oedema (ODE) and acute mountain sickness (AMS).

What are the symptoms of heatstroke and heat exhaustion? An NHS spokesperson said: "The signs of heat exhaustion include tiredness, dizziness, a headache, feeling sick, cramps, a high temperature ...