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  • Pre-arrival and gateway testing for the start of the spring semester

    Penn Today provides details on COVID-19 testing requirements for students, postdocs, faculty, and staff who are either enrolled in courses this spring or are coming to campus regularly.
    COVID-testing tent on campus, a person is being directed by a volunteer which station to go to.

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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