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HPV vaccine

Infections causes 16% of cancers–what?

Ed Yong, a scientist and contributor to Discover Magazine, wrote an blog post, What does it mean to say that something causes 16% of cancers?, discussing a news report that stated that 16% of cancers around the world were caused by infections.  Here are some excerpts:

A few days ago, news reports claimed that 16 per cent of cancers around the world were caused by infections. This isn’t an especially new or controversial statement, as there’s clear evidence that some viruses, bacteria and parasites can cause cancer (think HPV, which we now have a vaccine against). It’s not inaccurate either. The paper that triggered the reports did indeed conclude that “of the 12.7 million new cancer cases that occurred in 2008, the population attributable fraction (PAF) for infectious agents was 16·1%”.

But for me, the reports aggravated an old itch. I used to work at a cancer charity. We used to get frequent requests we got for such numbers (e.g. how many cancers are caused by tobacco?). However, whenever such reports actually came out, we got a lot confused questions and comments. The problem is that many (most?) people have no idea what it actually means to say that X% of cancers are caused by something, where those numbers come from, or how they should be used.Read More »Infections causes 16% of cancers–what?

Why do Americans hate Gardasil?

In next week’s issue of Forbes, Matthew Herper, the magazine’s medical editor, penned the article, The Gardasil Problem: How The U.S. Lost Faith In A Promising Vaccine, an insightful analysis of why Gardasil, the vaccine for human papillomavirus (HPV), has not become as important to vaccination strategies as measles or whooping cough.  All vaccines keep you alive, even if the disease does not appear to be scary.  There’s a belief, especially amongst the anti-vaccination crowd, that measles is just a few spots, and there are few risks to being infected.  The risk of severe complications is small, but significant.

On the other hand, the HPV vaccine does one thing and does it well–it prevents an HPV infection.  Human papillomavirus, a sexually transmitted disease, causes 70% of cervical cancers, 80% of anal cancers, 60% of vaginal cancers, and 40% of vulvar cancers.  It also prevents the majority of HPV caused oral cancers.  In other words, these diseases are in a different league of danger.  And they can be prevented.Read More »Why do Americans hate Gardasil?

LeRoy neurological illness mystery–junk science–update

(Updated to add more information about the anti-vaccination lunatics weighing in.)

When I write postings here, I never search google for information or sources, I always go to trusted locations for my information.  For example, if I read a news article on some interesting subject, I check with the original source, usually at PubMed, for medical articles, and the original abstract (at least) for other science articles.  I click on nearly every outlink in postings that I read, to confirm whether the information presented is accurate.  A google search is practically useless, especially for medical articles, because the amount of cruft and junk science makes it a challenge to sort.Read More »LeRoy neurological illness mystery–junk science–update

LeRoy teenage neurological illness mystery–junk science everywhere

When I write postings here, I never search google for information or sources, I always go to trusted locations for my information.  For example, if I read a news article on some interesting subject, I check with the original source, usually at PubMed, for medical articles, and the original abstract (at least) for other science articles.  I click on nearly every outlink in postings that I read, to confirm whether the information presented is accurate.  A google search is practically useless, especially for medical articles, because the amount of cruft and junk science makes it a challenge to sort.

WordPress blogs (which I use) tells the user if a blog posting was searched on google (or Yahoo…does anyone use that anymore?)  Apparently, my postings about the LeRoy (NY) neurological show up on google (but not that far up the list, so people must be digging), and I was kind of surprised.  This led me to do something that I just vowed I wouldn’t do, I googled it.Read More »LeRoy teenage neurological illness mystery–junk science everywhere

CDC makes recommendations on the use of HPV vaccine in males

The CDC’s Advisory Committee on Immunization Practices (ACIP) recommends routine vaccination of males aged 11 or 12 years with HPV4 administered as a 3-dose series (recommendation category: A, evidence type: 2§). The vaccination series can be started beginning at age 9 years. Vaccination with HPV4 is recommended for males aged 13 through 21 years who have not been vaccinated previously or who have not completed the 3-dose series. Males aged 22 through 26 years may be vaccinated.Read More »CDC makes recommendations on the use of HPV vaccine in males