We’ll start by sharing the following article by Andre Angelantoni: Why do people get the flu after getting the flu shot? He says:

What is actually happening is that the immune system is being programmed by the flu shot making it ready for the exact strains in the shot. It does not protect against other strains but instead opens you up to other flu strains and infection from other pathogens. It’s called heterologous immunity.

The studies

“Heterologous immunity” is a term meaning our immune system can have two opposing responses to infection, depending on the circumstances – it can be stimulated or suppressed.

The phenomenon of immune suppression in certain circumstances has been known for many years – it was first called “original antigenic sin” and in more recent years has been known as “linked epitope suppression”.
https://en.wikipedia.org/wiki/Original_antigenic_sin

Below is a list of studies that investigate this phenomenon as it relates to people getting sick after flu vaccination. We will add more studies as we find them. [Read more…] about Flu vaccines protect against target strains of flu, but leave recipients with increased likelihood of becoming ill from other infections