Chemical exposure may weaken vaccine's effectiveness

January 24, 2012 2:25:52 PM PST
PFCs are man-made chemicals that can be found in everything from cookware to pizza boxes, to plastic bags and stain resistant carpet.

The chemicals find their way into the food chain and into our bodies.

Now a study in the Journal of the American Medical Association suggests elevated levels of PFC chemicals may weaken the effectiveness of childhood vaccines.

According to the research, mothers with elevated PFC levels had children whose diphtheria vaccines were 39 percent less effective.

Children who also tested for high levels of the chemical were also at risk of a deficient immune response after tetanus and diphtheria vaccines.