Toddler swallowed half a dozen tiny magnets. Some got stuck in his throat. By Rachael Rettner Magnetic bead toys are particularly dangerous for young children, who may accidentally swallow them.
Cancer vaccine helped keep melanoma under control for years in small study By Nicoletta Lanese Scientists tested a vaccine for melanoma in a small trial.
Hand sanitizer is causing an epidemic of chemical burns to children's eyes By Rafi Letzter All that sanitizer people have been using since the start of the COVID-19 epidemic has led to more than just dry hands and eye-watering smells: It's nearly blinding some children.
Talking is worse than coughing for spreading COVID-19 indoors By Rachael Rettner The study also found that the virus can spread more than 6 feet (2 meters) in just seconds.
1st COVID-19 case in US reported a year ago By Yasemin Saplakoglu The U.S. has now tallied more than 24.2 million cases and more than 400,000 deaths.
The pandemic broke the CDC. New director will try to fix it. By Yasemin Saplakoglu The incoming CDC director has a lot of work to do, and she knows it.
Spinning egg yolks hint at how concussions warp the brain By Nicoletta Lanese Scientists used chicken eggs as a model for the human skull and brain.
Worrisome California coronavirus variant is tied to large outbreaks By Stephanie Pappas A new coronavirus variant has been found in multiple California outbreaks, but scientists aren't yet sure whether it's more transmissible than other strains.
RNA ties itself in knots, then unties itself in mesmerizing video By Nicoletta Lanese Watch as RNA dances and wiggles into its final form.
US life expectancy drops dramatically due to COVID-19 By Rachael Rettner Black and Latino populations are disproportionately affected.
UK coronavirus variant could become dominant US strain by March, CDC says By Rachael Rettner Strict measures will be needed to prevent it from taking over.
2 infants inhaled cancer cells from mothers during birth By Yasemin Saplakoglu The infants who were born to mothers with cervical cancer may have developed lung cancer after "aspirating" tumor cells
Quick guide: COVID-19 vaccines in use and how they work By Nicoletta Lanese Here's a guide to the vaccines being used in different countries.
New 'Columbus strain' of coronavirus evolved in the US By Rachael Rettner This strain quickly became the dominant coronavirus variant in Columbus, Ohio.
'Magic mushrooms' grow in man's blood after injection with shroom tea By Nicoletta Lanese The man spent 22 days in the hospital with a severe infection.
Could the novel coronavirus one day become a common cold? By Yasemin Saplakoglu One day, the pandemic will end. Scientists don't know how that finale will play out but a new model offers a teaser.
Marijuana use may reduce chances of getting pregnant By Rachael Rettner Women who use marijuana while they are trying to conceive may be less likely to get pregnant.
Parasite found in cat poop linked to higher brain cancer risk in humans By Ashley P. Taylor Here's another reason to cook your meat and take care around cat litter.
Coronavirus outbreak: Live Updates By Yasemin Saplakoglu, Rachael Rettner Pandemic news from around the world.
Gorillas at San Diego park catch COVID-19 By Rachael Rettner At least two of the gorillas have tested positive.
