Bachmann and HPV: the danger of speculation over evidence
This week brought back fears from a decade ago. Michele Bachmann, a US Republican presidential candidate, claimed that the HPV vaccine was a "very dangerous drug" that could lead to "mental retardation".
HPV or human papillomavirus is a virus that is associated with the development of genital warts and cervical cancer. Just this week, the Lancet reported that the global cervical cancer rates have increased over the past 30 years to 454,000 cases in 2010.
Clearly cervical cancer is an issue that cannot be ignored. Vaccines against HPV are life-saving.
Bachmann’s claims drew a sharp response from the American Academy of Pediatrics who stated that her comments have “absolutely no scientific validity.” To date over 35 million doses have been administered in the US with an excellent safety record.
Why did she bother to meddle with science? The answer is deadly simple: politics. Republican rival Rick Perry issued an executive order requiring girls in Texas to get the HPV vaccine in 2007. In a heated debate, Bachmann suggested that the decision was made in return for political donations from Merck, the manufacturers of Gardasil (the HPV vaccine used in the US).
Conflicts of interest are a separate issue; the focus here is on science.
The concern amongst health care professionals is the damaging impact false claims have on vaccination rates. The perceptions of vaccines changed forever after a now retracted article was published in the Lancet in 1998. In this small study of 12 children the now-disgraced British doctor Wakefield linked the Measles Mumps and Rubella (MMR) vaccine to autism. The media coverage and speculation that followed led to UK vaccination rates dropping to 80% in 2003-4.
Vaccine fears have fueled the recent outbreaks of measles. Before the MMR vaccine, measles was thought to be “as inevitable as death and taxes”, mumps infection could lead to sterility in post-pubescent boys and pregnant women that contracted rubella had children with serious congenital defects. The MMR vaccine was a public health success before Wakefield.
Politicians can throw mud at each other all they like but when they enter the ring of public health, they jeopardise putting all our health at risk. Society cannot let another vaccine crisis strike.
A US bioethicist has stepped forward and offered $10,000 to Bachmann’s charity of choice if she can prove a claim that the HPV vaccine caused mental retardation. Will she take on the challenge? For the sake of public health, hopefully not.