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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/WITF

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
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