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...
DARPA Is Responsible For The Creation Of the mRNA Gene Editing Technologies Used For The Covid-19 A.I. "Vaccine" BIOWEAPONS (DARPA LINKS BELOW TO PROOF)