Primary ovarian insufficiency (POI), previously known as premature ovarian failure, is one of those tropes pushed by the anti-vaccine religion – HPV vaccines cause POF. Although there is no robust epidemiological or clinical evidence of a link between the vaccine and primary ovarian insufficiency, the myth persists.
I regularly write about Gardasil safety and effectiveness, because I consider the HPV vaccine one of top 100 greatest medical inventions over the past century or so. We have so few ways to prevent cancer, despite the nonsense pushed by pseudoscientists like the brainless Food Babe. And one of the best ways to prevent cancer is getting the HPV vaccine to prevent HPV related cancers.
I originally wrote this article around 5 years ago, but it needed updating on several issues since things have changed on this website. But why do I care about maintaining a 5-year-old article about Gardasil safety? Because this is one of the seminal articles about Gardasil safety, one that is important to anyone’s understanding of the subject.
It may appear that scientific skeptics are always criticizing any newly published scientific article that doesn’t fit some imaginary point of view. Personally, I evaluate and critique a lot of “scientific” articles that make the rounds on the pseudoscience websites, such as the recent “canola oil causes Alzheimer’s disease” nonsense. Now, a new article has been published that claims that non-ionizing radiation causes miscarriage in a respected journal.
Of course, based on this one article, many news organization and legitimate websites have jumped all over it – “Miscarriage rates triple for women with top radiation exposures” is a typical headline. When I see a new science article get that much play in the press, my skeptical radar goes on full sensitivity mode. I just know there’s something wrong with the original science.
There has been a general misconception that flu vaccine during pregnancy was not safe. Whether this was based on the general concerns about vaccines or something specific is difficult to determine. One of the worries was that getting a flu vaccine during pregnancy may cause a higher risk of autism in the baby.
The measles vaccine, usually a part of the MMR vaccine (for measles, mumps and rubella) or the MMRV vaccine (MMR plus varicella, also known as chickenpox), successfully prevents measles, is a highly contagious respiratory disease caused by a virus. Measles starts with a fever, runny nose, cough, red eyes, and sore throat, similar to common cold. However, the initial symptoms are followed by a rash that spreads all over the body.
Current studies do not support the hypothesis that multiple vaccines overwhelm, weaken, or “use up” the immune system. On the contrary, young infants have an enormous capacity to respond to multiple vaccines, as well as to the many other challenges present in the environment. By providing protection against a number of bacterial and viral pathogens, vaccines prevent the “weakening” of the immune system and consequent secondary bacterial infections occasionally caused by natural infection.
A recent study, published in the journal Vaccine, provided evidence that the new 13-valent pneumococcal conjugate vaccine (PCV13) is as safe as the previous version, the 7-valent pneumococcal conjugate vaccine (PCV7). The newer version of the vaccine, introduced in 2010 after clinical trials, protects against a broader range of pneumococcus (Streptococcus pneumoniae, a significant human pathogenic bacterium) subtypes. These studies show that the new version did not increase the risk for any serious adverse events related to the vaccine.
Pneumococcal disease is a serious health care issue, especially for children and adults with certain risk factors. Pneumococcal disease can lead to various serious diseases like pneumonia and bacterial meningitis, or less serious ones like otitis media. Unfortunately, pneumococcal disease can be fatal. In some cases, it can result in long-term problems, like brain damage, hearing loss, and limb loss. Continue reading “New 13-valent pneumococcal vaccine is safe”
A recent article published in a leading psychiatry journal, JAMA Psychiatry, has shown that pregnant mothers’ exposure to the influenza (flu) was associated with a nearly 4X increase in risk to their child eventually developing bipolar disorder in adulthood. These findings add to mounting evidence of possible shared underlying causes and illness processes with schizophrenia, which some studies have also linked to prenatal exposure to influenza.Bipolar disorder, historically called manic depressive disorder, is a mood disorder where the sufferer can experience episodes of a frenzied state known as mania (or hypomania), typically alternating with episodes of depression. It can be treated with medications and psychotherapy (especially cognitive therapy), but more difficult cases require the individual to be voluntarily or involuntarily institutionalized until the mood changes can be reduced or eliminated.
One of the arguments made by vaccine denialists is that vaccines cause significant increases in nervous disorders, and they point to the vaccine’s Package Insert (PI) as “proof”. Setting aside the misuse of the information in a PI, there seemed to be some evidence that there was a slight increase in the rates of Guillain-Barré syndrome (GBS) following vaccinations, although the risk was far outweighed by the benefit of preventing deadly diseases. Guillain-Barré syndrome is an autoimmune disorder of the peripheral nervous system, where the immune system appears to attack nerves involved in movement, although sometimes it attacks respiration and other functions. Guillain-Barré syndrome is usually preceded by a viral or bacterial infection, such as the flu. It is a serious condition, which often takes several months for full recovery. About 80% of those who contract the disorder recover fully with treatment. Continue reading “No link between vaccines and Guillain-Barré Syndrome”