Health & Medicine

  1. Health & Medicine

    Here’s what you should know about COVID-19 vaccine booster shots

    No one knows if coronavirus booster shots will be necessary. But researchers are working on figuring that out.

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  2. Health & Medicine

    Solving mysteries of reproduction helped make parenthood possible for millions

    Over the last 100 years, research has shed light on where we come from — how a single fertilized egg manages to develop into an organism that is unique, complex and most decidedly human — and technology has helped spur the process.

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  3. Health & Medicine

    FDA approved a new Alzheimer’s drug despite controversy over whether it works

    A new Alzheimer's treatment slows progression of the disease, the drug’s developers say. But some researchers question its effectiveness.

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  4. Health & Medicine

    Food that boosts gut microbes could be a new way to help malnourished kids

    Malnourished children in Bangladesh fed a food aimed at restoring gut health grew more than those who got a traditional high-calorie supplement.

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  5. Health & Medicine

    After 40 years of AIDS, here’s why we still don’t have an HIV vaccine

    The unique life cycle of HIV has posed major challenges for scientists in the search for an effective vaccine.

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  6. Health & Medicine

    After vaccinating 95 percent of adults, a Brazilian city is returning to normal

    An experiment to vaccinate all adults against COVID-19 in Serrana shows that widespread immunization drastically cuts hospitalizations and deaths.

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  7. Health & Medicine

    A repurposed TB vaccine shows early promise against diseases like diabetes and MS

    The potentially helpful effect of the BCG vaccine on type 1 diabetes and other autoimmune diseases is beginning to make sense.

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  8. Health & Medicine

    Vaccinating people in developing countries costs far less than doing nothing

    Shots for half the adults in those countries will cost $9.3 billion, the Rockefeller Foundation reports. Doing nothing could cost trillions.

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  9. Health & Medicine

    Here’s what we know about the risks of serious side effects from COVID-19 vaccines

    Allergic reactions, blood clots and possibly heart problems are rare and their risks don’t outweigh the benefits of getting vaccinated, experts say.

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  10. Health & Medicine

    Here are answers to 3 persistent questions about the coronavirus’s origins

    Calls to double down on investigations into where SARS-CoV-2 came from — nature or a lab accident — are rising as answers remain scarce.

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  11. Genetics

    A gene-based therapy partially restored a blind man’s vision

    Light-activated proteins inserted in eye nerve cells and special goggles help the man, who lost his sight due to retinitis pigmentosa, see objects.

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  12. Health & Medicine

    The CDC’s changes to mask guidelines raised questions. Here are 6 answers

    Experts weigh in on the U.S. CDC’s recommendation fully vaccinated individuals removing masks indoors and what it means for the pandemic’s future.

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