A friend of mine tried to say that people shouldn't take vaccines because people who receive flu vaccines year after year can sometimes show reduced protection. This effect has been dubbed the "Canadian Problem".
People who receive flu vaccines year after year can sometimes show reduced protection, an effect that Canadian infectious disease specialists say muddies public health messages for annual flu vaccine campaigns.
The article talks about how the body is too busy fighting off the flu vaccine, that it gets the flu running around?
Sure, nothing in here says "well, don't take the vaccine", but has this effect been validated, or debunked?