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  1. Health & Medicine

    Protecting the brain from infection may start with a gut reaction

    In mice, immune cells in the meninges are trained to battle infections in the gut before migrating to the brain.

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  2. Health & Medicine

    Coronavirus cases are skyrocketing. Here’s what it will take to gain control

    Basic public health measures can still curb COVID-19, if everyone does their part.

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  3. Earth

    With Theta, 2020 sets the record for most named Atlantic storms

    Climate change is expected to fuel fewer — yet more intense — Atlantic storms. With a whopping 29 storms but few strong ones, 2020 may be an outlier.

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  4. Chemistry

    A new portable device can reveal a chili pepper’s heat

    The “Chilica-pod” measures levels of the fiery capsaicin compound in peppers.

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  5. Science & Society

    These are science’s Top 10 erroneous results

    A weird form of life, a weird form of water and faster-than-light neutrinos are among the science findings that have not survived closer scrutiny.

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  6. Health & Medicine

    Pfizer’s COVID-19 vaccine is 90% effective, preliminary trial data show

    An analysis of 94 COVID-19 cases shows that the mRNA-based vaccine can protect people from getting sick, though the trial is ongoing.

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  7. Space

    Jupiter’s icy moon Europa may glow in the dark

    Europa’s potential “ice glow” could help scientists map the chemical composition of its surface — and the ocean underneath.

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  8. Genetics

    Penicillin allergies may be linked to one immune system gene

    Researchers have located a shared hot spot — on the HLA-B gene — in the immune system in people who say they have penicillin allergies.

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  9. Neuroscience

    FDA advisory panel declines to support a controversial Alzheimer’s treatment

    The fate of an Alzheimer’s drug, developed by pharmaceutical company Biogen, remains up in the air.

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  10. Readers ask about positronium, wild bees and more

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  11. In praise of serendipity — and scientific obsession

    Editor in chief Nancy Shute writes about the role of serendipity and scientific obsession played in this month's feature stories.

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  12. Tech

    A smartwatch app alerts users with hearing loss to nearby sounds

    With a new smartwatch app, users who are deaf or hard of hearing can get alerts that an alarm is going off or someone is knocking at the door.

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