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...
COVID-19 | 2 Weeks Before the Pandemic Began, the U.S. Gov (NIAID) & MODERNA Signed a Confidential Agreement Regarding COVID-19 VACCINES. How Did the Know? The System & Method for Testing for COVID-19 Was Patented In 2015. How Did They Know?