Navigation Links
More Evidence That Vaccines Don't Cause Autism
Date:9/13/2010

By Jenifer Goodwin
HealthDay Reporter

MONDAY, Sept. 13 (HealthDay News) -- Infants exposed to the highest levels of thimerosal, a mercury-laden preservative that used to be found in many vaccines, were no more likely to develop autism than infants exposed to only a little thimerosal, new research finds.

The study offers more reassurance to parents who worry that vaccination raises their children's risk for autism, the researchers said.

"Prenatal and early life exposure to ethylmercury from thimerosal in vaccines or immunoglobulin products does not increase a child's risk of developing autism," concluded senior study author Dr. Frank DeStefano, director of the immunization safety office at the U.S. Centers for Disease Control and Prevention.

The study was released online Sept. 13 in advance of publication in the October print issue of Pediatrics.

Thimerosal has been used as a preservative in vaccines since the 1930s, according to background information in the article.

Concerns about the chemical began to crop up in 1999, when the U.S. Food and Drug Administration said that because of the increased number of thimerosal-containing vaccines added to the infant vaccination schedule, infants may be exposed to too much mercury. Thimerosal used to be found in hepatitis B, Hib (Haemophilus influenzae type B) and DTP (diphtheria, tetanus, pertussis) vaccines, among others.

During the ensuing years, the FDA worked with manufacturers to eliminate thimerosal from vaccines, according to the agency's Web site. Today, thimerosal has been removed or reduced to trace amounts in all vaccines routinely recommended for children 6 years of age and younger, with the exception of inactivated seasonal flu vaccine, according to the FDA. Parents who are concerned about thimerosal can ask for a preservative-free version, DeStefano said.

And thimerosal wasn't the only proposed autism-vaccine link. A 1998 paper in The Lancet suggested the MMR (measles-mumps-rubella) vaccine might trigger autism. The journal later retracted the paper, and numerous studies have refuted any link between the MMR vaccine and autism.

In February of 2009, a U.S. federal court ruled that there was no scientific evidence linking vaccines to autism.

In the new study, researchers examined medical records and conducted interviews with the mothers of 256 children with an autism spectrum disorder and 752 children matched by birth year who did not have autism. The children were all members of three health care management organizations in California and Massachusetts.

Researchers also gathered information about the manufacture and lot number of the vaccines that the children received, to determine how much thimerosal they were likely exposed to.

Children in the highest 10 percent of thimerosal exposure, either prenatally or between infancy and 20 months, were no more likely to have autism, an autism spectrum disorder or autism spectrum disorder with regression than children in the lowest 10 percent of exposure.

"This study adds to a large body of evidence indicating that early thimerosal exposure through vaccination does not cause autism," said Geraldine Dawson, chief science officer for a leading advocacy group, Autism Speaks. Dawson was not involved with the research.

She urged parents to have their children vaccinated.

"We encourage parents to have their children vaccinated and to establish a trusting relationship with their child's pediatrician so they can discuss any concerns they have," Dawson said.

More information

The U.S. Food and Drug Administration has more on thimerosal.

SOURCES: Frank DeStefano, M.D., M.P.H., director, immunization safety office, U.S. Centers for Disease Control and Prevention; Geraldine Dawson, Ph.D., chief science officer, Autism Speaks, New York City; Sept. 13, 2010, Pediatrics, online


'/>"/>
Copyright©2010 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. New research finds evidence of charitable behavior in bacteria
2. More Evidence Virus Plays Role in Chronic Fatigue Syndrome
3. Autism: Lack of evidence for antidepressants
4. New research finds no evidence that popular slimming supplements facilitate weight loss
5. More Evidence That B Vitamins Alone Wont Counter Heart Risks
6. New evidence that smokeless tobacco damages DNA and key enzymes
7. Experts explore emerging evidence linking diabetes and cancer
8. New evidence that drinking coffee may reduce the risk of diabetes
9. New evidence that chili pepper ingredient fights fat
10. Mobile access now available for Essential Evidence Plus
11. New evidence caffeine may slow Alzheimers disease and other dementias, restore cognitive function
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
More Evidence That Vaccines Don't Cause Autism
(Date:5/26/2017)... ... ... of Eden”: retells the stories of three Bible figures in modern terms. “Just What ... trader, horse farmer, artist and a former GM journeyman. Born in 1953 in Portland, ... to Dayton, Ohio, where Penny graduated high school. At sixteen, she toured France to ...
(Date:5/24/2017)... ... 2017 , ... Last month, representatives from Rendina Healthcare Real ... officials to celebrate the grand opening of the 87,000 square foot medical office/ICU ... its ongoing relationship with RWJBarnabas Health, New Jersey’s largest health system. Two years ...
(Date:5/24/2017)... ... May 24, 2017 , ... Altec Products, Inc., a ... 2017 – a one-day technology conference in San Diego, CA. , At nVerge ... users to fully utilize and enhance their Sage ERP solutions by providing improved visibility ...
(Date:5/24/2017)... ... , ... Dr. Manju R. Kejriwal, a leading Ohio dentist, is now welcoming ... referral. Dr. Kejriwal understands the emotional and financial toll traditional orthodontics can take on ... no longer need to feel the esthetic effects of wires and brackets when they ...
(Date:5/24/2017)... Hattiesburg, Mississippi (PRWEB) , ... May 24, 2017 , ... ... fact is his has the ability to sell luxury homes anywhere on the planet. ... in the county side from Hattiesburg to Houston city-scapes. A quick search of “11 ...
Breaking Medicine News(10 mins):
(Date:5/6/2017)...  May is Stroke Awareness Month and Omron Healthcare ... methods to prevent a stroke: monitor and manage your ... and Prevention, undetected and uncontrolled hypertension is a leading ... leader in personal heart health technology, recently evolved its ... and stroke and is advancing a national public education ...
(Date:5/4/2017)... , May 4, 2017  A recent ... Control, Ultraviolet-C light as a means ... SmartUVC,s ability to reduce bioburden on anesthesia workstations. ... reduction on high-touch, complex medical equipment surfaces contaminated ... infections. "This study further validates the ...
(Date:5/4/2017)... 4, 2017  DarioHealth Corp. (NASDAQ: DRIO), a leading ... data solutions, today announced that it is teaming up ... Technologies Limited to lower diabetes healthcare costs in ... card, which is available throughout all provinces and territories ... be eligible for additional savings when shopping for Dario ...
Breaking Medicine Technology: