How does PFAS exposure appear to interfere with the body's immune response based on research findings?

It may decrease the body's ability to produce antibodies in response to vaccines

One critical adverse health outcome linked to PFAS exposure relates to the disruption of the immune system's protective capabilities. Research indicates that exposure to these persistent chemicals can negatively impact the body's immunological memory and response mechanisms. Specifically, studies suggest that PFAS exposure can result in a measurable decrease in the body's efficiency at generating antibodies following vaccination. Since antibodies are crucial for conferring long-term protection against infectious diseases following exposure or immunization, a reduced capacity to produce them implies that individuals exposed to PFAS may have diminished long-term defense against various pathogens.