Mercury in baby vaccines is linked
to autism
FRASER NELSON
MERCURY, one of the most dangerous substances
known to man, is being used in a series of infant vaccines - in spite
of a warning from NHS advisers that its use as a cheap preservative
"may be toxic" to babies aged under six months.
Thimerosal, a compound 50 per cent composed of ethyl mercury, which is
banned in the United States amid fears of its links to autism, is
being used in the DTwP vaccines given to infants aged eight weeks.
A report from NHS scientists has indicated that thimerosal is not only
dangerous to infants, but also to the unborn child if contained in
products used by pregnant women.
The UK Medicines Information (UKMI) service, run under the NHS banner
to provide advice to doctors, has compiled a report naming the 13 UK
vaccines which contain thimerosal - referred to as "thiomersal" by
some scientists.
The list includes four out of the seven flu vaccines issued this year
by the government, a pneumonia vaccine and four of the 11 child
vaccines. The main source is the triple DTwP jab, for whole-cell
diphtheria, tetanus and pertussis.
There is no mercury in vaccines for MMR, polio, meningitis C or the
DTaP injection, which also protects against diphtheria and tetanus.
But UK infants are always given the DTwP vaccine, which does contain
mercury.
"The very low thiomersal concentrations present in the pharmacological
and biological products are relatively non-toxic in adults," the UKMI
report says. "But it may be toxic in utero [in the foetus] and during
the first six months of life."
It is the first time any UK health official has admitted to the danger
posed by mercury in vaccines.
Pressure groups described the UKMI advice as a "bombshell" which
should "make Britain wake up to what the Americans have known for
years" and force ministers to take mercury out of all medicine.
Action Against Autism, a pressure group, said this tallied with the
boom in autism since vaccination ages were lowered in 1990.
"If the Department of Health is aware that thimerosal is unsafe for
childhood vaccines, than we may be looking a criminal medical
negligence on a massive scale," said Bill Welsh, the groups chairman.
The Department of Health last night confirmed to The Scotsman that the
UK vaccination schedule will have exposed infants to thimerosal, and
therefore mercury, three times by the age of 17 weeks.
"The level of thiomersal present is 50 micrograms per injection," a
spokesman said. "UK childhood exposure to thiomersal is via
DTP-containing vaccine only and, as such, up to four months of
age-cumulative exposure to thiomersal is 150 micrograms from three
injections."
Although it did not refute that this substance is toxic, it said the
UK Committee on Safety of Medicines "has advised that there is no
evidence of harm caused by doses of thiomersal in vaccines, except for
hypersensitivity reactions".
It is hypersensitive reactions to thiomersal, however, which are now
being linked to autism by research. The UKMI advice says as many as 18
per cent of children - almost one in five - can experience
side-effects.
It added that a memo warning about the toxic risk in thiomersal was
provided by the Wessex Drug and Medicines Information Centre in
Southampton University Hospitals Trust, dated October 2002.
The Department of Health said it was "independent advice from
independent doctors" and that it is not necessarily endorsed by
ministers.
Thimerosal has been used in vaccines since 1939. The first case of
autism was diagnosed four years after - a condition never before
recorded in medical science.
The US Institute of Medicine has warned that thiomersal has a
"biologically plausible" link to autism, an admission which has
fuelled £30 billion class action in the US against Eli Lilly, the main
thiomersal producer.
The Scottish Parliament has the power to ban mercury in vaccines. In
spite of pressure from the SNP and the Tories, ministers have decided
to stay within the UK vaccination programme.
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