The controversy surrounding the measles, mumps, and rubella (MMR) vaccine
continues to smoulder and every now and then someonestokes the fire.
This time it is "top Mail writer" Melanie Phillipsin a much
hyped series of three articles in the Daily Mail underthe
banner "MMR: the truth" (11, 12, and 13March).
Despite a three month globe-trotting investigation, Phillips, a seasoned
polemicist, presents nothing new; she simply followsthe usual
pattern of conspiracy theory. For example, she claimsthat Professor
John O'Leary, a pathologist at Trinity CollegeDublin, was gagged
after announcing that the measles virus hehad found in the guts of
children with autism was the same strainas that used in the MMR
vaccine. And she refers to more "potentiallyexplosive"
about-to-be-published research from gastroenterologistAndrew
Wakefield"the doctor at
the heart of the MMR furore"whichit is claimed will show that he is right and that the rest of
the world iswrong.
Phillips' articles, billed as a "major new series," follow the special MMR
theme issue published last year by the satiricalmagazine Private
Eye, which also appeared to have taken on boardunthinkingly all
that Andrew Wakefield has said, and lacked anyscientific
underpinning (BMJ 2002;324:1224)[Free
Full Text].
In a similar fashion to the Private Eye "exposé," Phillips
consistently describes the experts in the "anti-MMR camp" in glowing
terms, such as "eminent," "renowned," and "foremost." However,she is
less liberal with her superlatives in describing the "pro-MMR"
experts.
She describes Wakefield as an outcast and an enemy (of the scientific
community and the government), who believes himselfto be on the
brink of vindication. Unfortunately, appealing tothe public through
a writer like Melanie Phillips, rather thanby subjecting his
findings to the usual scientific peer reviewprocess, will only cause
further anxiety and concern for parentsand do nothing to win the
hearts and minds of thescientists.
Phillips makes much of the conflicting interests of various experts. She
rightly points out that vaccine manufacturers haveemployed some
"pro-MMR experts" as advisers or have funded themin their research.
But surely it is reassuring to know that thecompanies seek advice
from people who know what they are talkingabout? Authors in most
mainstream journals, including the BMJ,are required to
declare any potential conflicting interests; ifthey sit on
government committees discussing vaccines, they donot take part in
discussions that may conflict with theseinterests.
However, Phillips does not point out that Andrew Wakefield and other players
are acting for the parents in an upcoming courtcase over MMR and so
could be said to have vested interests. Justas we ought not to
ascribe venal motives to the parents of autisticchildren who would
stand to receive compensation if their lawsuitsucceeds, so we should
not accuse researchers of bias becausevaccine manufacturers fund
their research. If everyone with an"interest" were to be removed
from the debate there would be noone left with any knowledge of the
subject.
Phillips rubbishes epidemiological studies, even though such studies have
been the tools used in many major medical discoveries,such as the
link between smoking and lung cancer. The reviewsshe quotes have
quite correctly concluded that the evidence doesnot support a link
between autism and MMR, but it can never ruleout the possibility
that the occasional case is associated withthe vaccine. Phillips
interprets this as distortion, which demonstratesher lack of
understanding of one of the fundamental tenets ofepidemiological
researchthat one can
never totally prove a negative.However, she refers to an "epidemic
of autism." If there is one,then epidemiological studies should have
no problem in pickingup a major factor in itscausation.
In place of epidemiological studies, Phillips calls for clinical studies,
involving talking to parents and examining individualchildren. Why
this should be better is unclear and reveals a lackof understanding
that one always has to compare affected childrenwith those who are
unaffected. Without this, there can be no usefulprogress and, more
likely, there is a serious risk of drawingthe wrong conclusions, as
was the case with the whooping coughvaccine.
The Daily Mail's series of articles will serve only to worry parents
further. Researchers, and those who report their work,must consider
the effect that anything they say may have, especiallywhen it comes
to the health of children. This responsibility shouldnot be takenlightly.
Footnotes
Both authors have received funding from vaccine manufacturers as well as
other sources to attend educational meetings andconduct
research.
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YOUR HEALTH CARE PROVIDER.
"A foolish faith in authority is the worst enemy of truth."
-- Albert Einstein, letter to a friend, 1901
"I know of no safe depository of the ultimate powers of the society but the people themselves, and if we think them not enlightened enough to exercise control with a wholesome discretion, the remedy is not to take it from them, but to inform their discretion by education."
-- Thomas Jefferson, letter to William C. Jarvis, September 28, 1820
"What's the point of vaccination if it doesn't protect you from the unvaccinated?"
-- Sandy Gottstein
"Who gets to decide what the greater good is and how many will be sacrificed to it?"