Research shows that CSL, an Australian flu vaccine maker, only recently discovered that the strains in the 2010 trivalent vaccine overstimulated the immune system of some young children, triggering febrile seizures.
What Are Febrile Seizures?
Febrile seizures are convulsions brought on by a fever in infants and small children. A child often loses consciousness and shakes, moving limbs on both sides of the body when experiencing a febrile seizure.
Normally these seizures last for a minute or two, although some can be as brief as a few seconds. However, others can last for more than 15 minutes.
Rectal temperature greater than 102 degrees Fahrenheit are found in the majority of children with febrile seizures.
How Were Febrile Seizures Triggered By FluVax?
Rates of fever and convulsions in children younger than five after receiving flu shot were significantly higher than expected during the Southern Hemisphere’s 2010 flu season.
A number of studies were done regarding these vaccinations to help figure out why so many children were suffering from these types of seizures.
Researchers reported that the combination of influenza B and the H1N1 virus in the 2010 vaccine may have resulted in a heightened immune response which may have been associated with febrile seizures.
As a result, Australia and New Zealand recommended that the flu vaccination be suspended. CSL removed it from the market in 2011 and vaccines advisers in the United States recommended that it not be used in children under age 5 during the Northern Hemispheres’ 2010-11 flu season.
Prior to FluVax , another vaccine known as Pandermix was developed by GlaxoSmithKline and patented in September 2006,. It was designed to treat influenza pandemics like H1N1 2009 pandemic and Swine Flu.
However, according to the British Medical Journal, health reports linked the vaccine to narcolepsy in some patients and the studies have shown the vaccination increased the risk of the sleep disorder.
Though the flu vaccine is widely administered it is not without risk.