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Severe COVID-19 may damage the eyes, small study hintsThe researchers saw "nodules" at the back of patients' eyes, which can be signs of inflammation or direct damage to the eye.
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Giant hair ball tears through teen's stomach, requiring surgeryThe hair ball was more than a foot long and completely filled her stomach.
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CDC issues new guidelines for safely reopening schoolsThe recommendations provide a "long-needed road map" for reopening schools, officials said.
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Diabetes drug led to dramatic weight loss in large trialParticipants lost 15% of their body weight.
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California coronavirus variant is spreading rapidly. Should we worry?Known as CAL.20C, the variant now accounts for nearly half of COVID-19 cases in Southern California.
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CDC says double-masking improves protection from COVID-19The study tested several methods for improving mask fit.
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COVID-19 may lower sperm counts, small study findsIn a study of 43 men who had recovered from COVID-19, nearly 20% had azoospermia, or the total absence of sperm in semen.
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The sneaky way the coronavirus mutates to escape the immune systemThe mutations 'disguise' the virus from antibodies.
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Horse tranquilizer emerges as new and deadly street drug in USCalled xylazine, the drug is a sedative used in veterinary medicine, and is not approved for use in humans.
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UK coronavirus variant develops vaccine-evading mutationThis mutation has also been seen in a novel coronavirus variant in South Africa.
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South African coronavirus variant: All your questions answeredExperts are particularly alarmed by this variant because of its potential to "escape" protection from current vaccines.
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Ultrasound treatment 'jump-started' the brains of 2 people in coma-like stateThe two patients who received the treatment showed significant progress over just days.
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A woman seemed recovered from COVID-19. Then both her lungs collapsed.The case is unusual because the woman had not been previously hospitalized with COVID-19 or put on a ventilator.
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Why cats and dogs may need their own COVID-19 vaccinesAnimal "reservoirs" may pose a risk to humans down the road.
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UK coronavirus variant may be more deadly, early evidence suggestsCOVID-19 vaccines are still expected to work against the new variant.
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Toddler swallowed half a dozen tiny magnets. Some got stuck in his throat.Magnetic bead toys are particularly dangerous for young children, who may accidentally swallow them.
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Talking is worse than coughing for spreading COVID-19 indoorsThe study also found that the virus can spread more than 6 feet (2 meters) in just seconds.
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US life expectancy drops dramatically due to COVID-19Black and Latino populations are disproportionately affected.
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UK coronavirus variant could become dominant US strain by March, CDC saysStrict measures will be needed to prevent it from taking over.
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New 'Columbus strain' of coronavirus evolved in the USThis strain quickly became the dominant coronavirus variant in Columbus, Ohio.
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Marijuana use may reduce chances of getting pregnantWomen who use marijuana while they are trying to conceive may be less likely to get pregnant.
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Coronavirus outbreak: Live UpdatesPandemic news from around the world.
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Gorillas at San Diego park catch COVID-19At least two of the gorillas have tested positive.
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Sleep evolved before brains did, study findsIt turns out you don't need a brain to sleep.
