Although flu vaccine may help to prevent influenza in some, it’s complicated. For one thing, there is no single virus that causes the flu and no one flu vaccine that protects against them all. There are also no controlled studies that demonstrate any decrease in cases of the flu among those who have gotten the vaccine.
The shot is designed to offer immunity against the strains of flu that are expected to be most the common and serious in the next season. This rate can be anywhere from 10% to 60% at most, but never offers complete protection, and varies in effectiveness from year-to-year.
Safety is the other concern because vaccines are exempt from testing the effects, alone or in combination with other drugs and vaccines. They also contain toxic chemicals that can cause harmful side-effects, including death.
Pregnant women should be aware that some of the flu vaccines contain Thimerosal, which is a mercury derivative. Mercury is toxic to the brain and has been associated with brain damage and developmental delays in babies whose mothers were exposed to high levels of mercury during pregnancy. A recent study showed exposure flu viruses from the shot during pregnancy provoke a similar gene expression pattern in the fetus as that seen in autistic children.
I personally would never get a flu (or any other) shot, but I encourage everyone to research and make an educated choice. Thanks to a good diet, supplements and homeopathy, I have never experienced complications from the flu.