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...
Radiofrequency/Microwave Radiation Biological Effects and Safety Standards: A Review - Rome Laboratory - Air Force Materiel Command GrAffin Mr Force Ban, New York 1994