Not only does the influenza type A vaccine offer little or no benefit, it also weakens the immune system in children—making them more prone to every other influenza virus. It is, at best, a crap shoot as to which influenza strains will make the rounds in any season. Therefore, it should come as no surprise that people continue to get the flu after having the vaccinations.
Potentially even worse, though, is that the particular part of the immune system harmed by the vaccine also defends against cancer.
The study, “See...Annual Vaccination against Influenza Virus Hampers Development of Virus-Specific CD8 T Cell Immunity in Children“, was published in the Journal of Virology. It shows that immunity to influenza A virus (H5N1) – as measured in terms of antibodies, not actual trials of efficacy – is obtained at the cost of the T cells called CD8+. The authors found that children become more susceptible to other types of flu if an H5N1 vaccine is given.