Immunization Info. National Network for Immunization Information
 
Link to Main Page
  Back Immunization Newsbriefs Search the Site Send Your Feedbck  
 
Resources
About NNii
Vaccine Information
Parents
Health Professionals
Policy Makers
Pressroom
Partners
 
Feature Archive
[January 23, 2002]


Do Multiple Vaccines Overwhelm or Weaken the Infant’s Immune System?

Many parents worry that the vaccines their child receives may overload his or her immune system.  But a new study – published in the January 2002 issue of Pediatrics -- found that today’s children are actually exposed to fewer antigens (the substances that produce an immune response) in vaccines than ever before. Why?  Advances in chemistry mean that today’s vaccines use fewer antigens, and, in addition, children no longer receive smallpox vaccine.  Smallpox itself contained more antigens (200) than are in all 11 of today’s recommended vaccines (about 125).  Based on the immune systems capacity to respond, scientists estimate that a child could get 10,000 vaccines in one day and still not “use up” his or her immune response.

See the full Pediatrics article.

 
     
© Copyright National Network for Immunization Information. The information contained in the National Network for Immunization Information Web site should not be used as a substitute for the medical care and advice of your health care provider. There may be variations in treatment that your health care provider may recommend based on individual facts and circumstances.

Disclaimer