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The CDC now recommends Pfizer boosters after 5 months, down from 6

Recommendations for booster shots for those who initially received vaccines made by Moderna or Johnson & Johnson have not changed.

By Scott Blanchard

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Does PFAS exposure affect COVID-19 illness and vaccine effectiveness? Researchers want to know

Studies at Rutgers and elsewhere are looking at possible links. The chemicals can cause serious health problems, including immune system effects.

By Zoë Read/WHYY

Southwest Pennsylvania hospitals will comply with vaccine mandate and avoid penalties

The federal mandate takes effect Jan. 4.

By Sarah Boden/WESA

Pennsylvania closer to offering COVID-19 vaccines for children

Late last week the U.S. Food and Drug Administration authorized the emergency use of the Pfizer-BioNTech COVID-19 vaccine for children five through 11 years of age.

By Merideth Bucher