F.O.I. Request Pfizer's COVID-19 Vaccine Contract with Canada. October 26, 2020, page 18, it states: the "Purchaser further acknowledges that the long-term effects and efficacy of the Vaccine are not currently known...
Elon Musk | "Maybe That Should Be One of the Tests for the AI (Artificial Intelligence), Blank Is Your Favorite James Cameron Movie? Fill In the Blank." + "AI Doesn't Have to Be Evil to Destroy Humanity." - Elon Musk + Rev 18:22