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The Daily Pennsylvanian Founded in 1885
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Sunday, Dec. 28, 2025
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The Daily Pennsylvanian

04-14-21 Penn Vaccination Site Covid-19 Vaccine Mask Nurse.jpg

Penn Institute of Immunology found that people who have recovered from COVID-19 may only need a single dose of the vaccine. Chase Sutton

Penn Institute of Immunology found that people who have recovered from COVID-19 may only need a single dose of the vaccine.

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