Categories Current Affair In December 2020, it was noted that Pfizer vaccine may not be suitable for people who are prone to Post author By esimpk Post date August 24, 2021 (A) catching flu (B) high blood pressure (C) serious allergic reactions (D) bleeding ← In Pakistan Blackout (Light gone due to error in National Grid) Occurred on———— → According to Pfizer pharmaceutical company, their Covid-19 vaccine has ______ effective rate.