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  • The monumental effort to scale up campus COVID-19 testing

    Key facts and figures point to the scale of the Penn Cares testing program and how Project Quaker helped bring students back to campus this spring.
    people in a large outdoor tent standing on marked circles and walking to tables staffed by people wearing surgical gowns
    As of mid-March, more than 140,000 saliva-based tests for COVID-19 have been conducted since the start of the spring semester Penn Cares testing program.

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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

    What stiffening lung tissue reveals about the earliest stages of fibrosis
    Donia Ahmed prepares tissue for imaging.

    Image: Courtesy of Penn Engineering Today

    What stiffening lung tissue reveals about the earliest stages of fibrosis

    A Penn Engineering team has targeted the lung’s extracellular matrix to better understand early fibrosis by triggering the formation of special chemical bonds that increase tissue stiffness in specific locations, mimicking the first physical changes that may lead to lung fibrosis.

    Sep 12, 2025