The antiviral medication Paxlovid appears to be most effective in people whose age or underlying health puts them at high risk for becoming severely ill with Covid-19, but it appears to be less effective for average-risk adults, drugmaker Pfizer reported.
The US Environmental Protection Agency issued health advisories Wednesday for common "forever chemicals" that are found in hundreds of household items and pollute drinking water systems across the country.
Dr. Anthony Fauci, director of the National Institute of Allergy and Infectious Diseases and President Biden's chief medical adviser, has tested positive for Covid-19, the institute said Wednesday.
Vaccine advisers to the US Food and Drug Administration voted unanimously on Wednesday in favor of expanding the emergency use authorizations for the Moderna and Pfizer/BioNTech Covid-19 vaccines to include children as young as 6 months.
Of all the natural disasters, heat is the No. 1 killer, studies show. And as temperatures continue to rise because of the climate crisis, scientists expect it to make even more people ill.
Tombstones in what's now Kyrgyzstan have revealed tantalizing details about the origins of the Black Death, the world's most devastating plague outbreak that is estimated to have killed half of Europe's population in the space of seven years during the Middle Ages.
Vaccine advisers to the US Food and Drug Administration decided unanimously Tuesday in favor of expanding the emergency use authorization of Moderna's Covid-19 vaccine to include older children and teens, ages 6 to 17, saying it would offer more benefits than risks.
The World Health Organization will convene an emergency committee meeting to assess if the current monkeypox outbreak is a public health emergency of international concern, WHO Director-General Tedros Adhanom Ghebreyesus said during a news briefing in Geneva on Tuesday.
A male mastodon died fighting with a rival during mating season about 13,200 years ago in what is now northeast Indiana. Now, his well-preserved fossil and tusks reveal not only how the 8-ton adult died, but also where he trekked across North America.
Rohit Kumar Rai and his wife have both lost family members in India to Covid-19, so they know how serious the disease can be. That's why they have been living so carefully in Texas until their 4-year-old son can be vaccinated as well.
Several months after older children became eligible to get vaccinated against Covid-19, the United States might be just days away from offering vaccines to those younger than 5.
For the first time, the Hubble Space Telescope has detected a lone object drifting through our Milky Way galaxy -- the invisible, ghostly remains of a once radiant star.
It's the middle of the day, and your morning caffeine rush has sputtered to a slow crawl. You're starting to slump but don't want another turbocharged cup of coffee. Why not turn to a refreshing glass of iced tea?
Strange and unexpected tsunami-like starquakes -- movements on stars' crusts similar to earthquakes we experience on our planet -- have been revealed by the European Space Agency's Gaia space observatory.
