Health & Medicine

More Stories in Health & Medicine

  1. vial and syringe containing pfizer covid-19 vaccine
    Health & Medicine

    Pfizer says its COVID-19 vaccine has 100 percent efficacy in young people

    Vaccinated 12- to 15-year-olds developed higher levels of coronavirus antibodies compared with vaccinated 16- to 25-year-olds from a previous trial.

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  2. microscopic image of several xenobots
    Health & Medicine

    Frog skin cells turned themselves into living machines

    The “xenobots” can swim, navigate tubes, move particles into piles and even heal themselves after injury, a new study reports.

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  3. a woman receives her first dose of the COVID-19 vaccine at a hospital
    Health & Medicine

    Moderna and Pfizer COVID-19 vaccines may block infection as well as disease

    The mRNA vaccines are about 90 percent effective at blocking coronavirus infection, which could lead to reduced transmission, real-world data suggest.

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  4. AstraZeneca's COVID-19 vaccine in boxes
    Health & Medicine

    AstraZeneca’s COVID-19 vaccine holds up in an updated analysis of trial data

    The redo dropped the overall efficacy of AstraZeneca’s vaccine from 79 percent to 76 percent. But a slight fluctuation is not unexpected, experts say.

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  5. street light in a suburban neighborhood
    Animals

    Dim lighting may raise the risk of a West Nile virus exposure

    Dimly lit nights increased risk of West Nile virus exposure in chickens. Artificial light proved a better predictor of risk than population or paving.

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  6. Baré person getting Sinovac COVID-19 vaccine
    Health & Medicine

    Here’s what makes 4 promising COVID-19 vaccines unique — and potentially useful

    More vaccines still in the works are exploring a variety of approaches, including pills and electrical zaps.

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  7. AstraZeneca vaccine vial with syringe
    Health & Medicine

    AstraZeneca says its COVID-19 vaccine is 79 percent effective in a U.S. trial

    The shot was 80 percent effective at preventing illness in people 65 and older and prevented severe disease and hospitalization.

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  8. illustration of woman with headache with pills and a syringe in the background
    Health & Medicine

    New drugs that block a brain chemical are game changers for some migraine sufferers

    Drugs that block a brain chemical called CGRP are helping some patients who suffer from migraine pain.

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  9. vial and box of AstraZeneca’s COVID-19 vaccine
    Health & Medicine

    AstraZeneca’s COVID-19 vaccine isn’t tied to blood clots, experts say

    Multiple countries suspended use of AstraZeneca’s COVID-19 vaccine because of concerns about blood clots, but health authorities say the shot is safe.

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