"Immunization failed to reduce episodes of respiratory infections (1.8 episodes/study period among vaccinees vs. 2.0 among controls). Similarly the vaccine failed to affect the total number of days the vaccinees suffered from respiratory infections (13.5 days vs. 14.6 days, respectively)".
This is only one study, but it had a very good sample size of 500 odd people. I think the injection is another money grab by big P. DYOR.
