EAST LANSING, Mich. (WILX) – Researchers at Michigan State University have linked exposure to per- and polyfluoroalkyl substances, or PFAS, to a weakened immune system.
PFAS, often referred to as “forever chemicals,” are found in drinking water, food packaging and everyday household items. The new study suggests their effects may persist into adulthood, not just during childhood.
One compound highlighted in the research, perfluorohexanesulfonic acid, or PFHxS, can remain in the human body for nearly a decade, making it a key marker of long-term exposure.
The study also found the immune system is among the most sensitive targets of PFAS.
In research involving people previously exposed to PFAS through contaminated drinking water, scientists found that individuals with higher blood levels of the chemicals produced fewer protective antibodies when exposed to a new virus. The finding is a key measure of the body’s response to infection.
Researchers said the results highlight the importance of strong national drinking water standards.
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