It's called a long-term study. B is the placebo group. The Pfizer vaccine was rolled out after a two-month study instead of the usual 5-10 years. Slide 12 of this document [1] shows an increase in death following the Pfizer inoculation. The Pfizer vaccine is causing acute myocarditis in people under the age of 50. This is causing people to collapse months later when the heart is put under strain with seemingly no symptoms. But don't listen to me, I'm just a crazy conspiracy theorist. In fact, go ahead and trust science and get yourself a booster shot.

[1] https://www.canadiancovidcarealliance.org/wp-content/uploads...