| Home | About Natural News | Contact Us | Write for Natural News | Media Information | Advertise with Natural News | ||||
![]() |
![]() |
|||
|
||||
|
|
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. The findings showed an association between increased PCB contamination and lowered antibody response to the vaccines. At 18 months, the diphtheria antibody concentration decreased by 24 percent for each doubling of the PCB exposure. At 7 years, the tetanus antibody response showed the strongest response and decreased by 16 percent for each doubling of the prenatal exposure. "Our study raises concern that exposure to PCB and similar compounds may make childhood vaccinations less efficient," said Philippe Grandjean, adjunct professor at Harvard School of Public Health and co-author of the paper. Exposed children may also be more susceptible to infections in general, he said. There were some limitations to the study, including the relatively small numbers of children who were examined and the time intervals between collection of blood samples. PCB is present in fatty fish worldwide and is known from laboratory studies to affect the development of the immune system. The evidence that PCB exposure may have adverse effects on the immune function in children therefore suggests that vaccine effectiveness may be an additional reason to prevent exposures to PCBs and other environmental pollutants. Contact: Christina Roache croache@hsph.harvard.edu 617-432-6052 Harvard School of Public Health Related CounterThink Cartoons:
|
![]() 8 Weeks to Vibrant HealthLearn why this is the must-read guide to women's health you've been waiting for... Click here...
|
|||||||||||||||||||||||
| What is this? |
Additional Products of Interest to AllKatadyn Exstream XR Water Purifier☯#1 personal water purifier for clean, pristine water in seconds Preparedness Tools Natural News Bundle☯ For preparedness and safety: 60% off for preparing for natural disasters How to Halt Diabetes in 25 Days☯ Health Ranger guide to reversing diabetes for reversing type-2 diabetes Free download: Selling Sickness (summary) Read the best book on disease mongering for learning the truth about Big Pharma Revealed: Natural Health Solutions (free) Free summary of book by Mike Adams for learning censored natural health remedies Exposed! The Toxic Chemistry of Products Free summary of this shocking book for learning the truth about toxic products Appetite for Profit (free download) Free download summary of this top book for discovering the truth about food companies The Biology of Belief by Bruce Lipton A free download of Biology of Belief for learning about the mind-biology connection The Genie In Your Genes by Dawson Church A free, downloadable summary of this book for learning about the biology of intention Katadyn MicroPur Water Purifier Tablets☯ The best water purification tablets for purifying almost any water source The Weiss Method for Heart Disease☯ How to reverse heart disease naturally for heart disease, high cholesterol * Products do NOT pay to be listed here. These are genuine, independent recommendations by the Health Ranger ☯ Products with this symbol are sold by NaturalNews or its affiliates and earn revenues for NaturalNews |
Also on NaturalNews:• Streaming Health Ranger Videos• CounterThink Cartoons • FREE Special Reports • Podcasts |
Home | About Natural News | Contact Us | Write for Natural News | Media Information | Advertise with Natural News This site is part of the Natural News Network © 2009 All Rights Reserved. Privacy | Terms All content posted on this site is commentary or opinion and is protected under Free Speech. Truth Publishing International, LTD. is not responsible for content written by contributing authors. The information on this site is provided for educational and entertainment purposes only. It is not intended as a substitute for professional advice of any kind. Truth Publishing assumes no responsibility for the use or misuse of this material. Your use of this website indicates your agreement to these terms and those published here. All trademarks, registered trademarks and servicemarks mentioned on this site are the property of their respective owners. |
![]() |