Exposure to PCBs May Reduce the Effectiveness of Vaccines in Children

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Omschrijving
New epidemiological evidence suggests that exposure to environmental pollutants may have an adverse impact on immune responses to childhood vaccinations. The research appears in the Aug. 22, 2006, online edition of Public Library of Science Medicine. The study looked at two groups of children in the Faroe Islands, which are located in the North Atlantic and where traditional diets may include whale blubber contaminated with polychlorinated biphenyls (PCBs). Blood and milk samples taken during pregnancy from the mothers were analyzed to determine the children's prenatal PCB exposure. After routine childhood vaccinations against tetanus and diphtheria, the two groups of children were examined at age 18 months and 7 years, and blood samples were examined for tetanus and diphtheria antibodies.

 

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Categorie: vaccinaties

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