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  • Ensuring an ethical path to a ‘warp speed’ vaccine

    Penn scholars consider the ethical implications of the development and allocation of a COVID-19 vaccine.
    medical professional giving vaccine shot
    The path to developing a vaccine for COVID-19 has been unprecedented in its speed. Penn experts have been working to ensure that the development and eventual allocation of vaccine proceed ethically.

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  • Exposure to air pollution worsens Alzheimer’s disease
    Emissions from a power plant.

    Image: Pencho Chukov via Getty Images

    Exposure to air pollution worsens Alzheimer’s disease

    New research from Penn Medicine finds living in areas with high concentration of air pollution is associated with increased buildup of amyloid and tau proteins in the brains of Alzheimer’s patients, accelerating cognitive decline.

    Sep 9, 2025