Why COVID Vaccine Boosters Now?

The video discusses the impact of COVID-19 variants, particularly Delta, on vaccine effectiveness. It highlights the difference between vaccine efficacy and effectiveness, using Israel as a case study to show how Pfizer's effectiveness decreased over time. Research from the Mayo Clinic indicates a drop in effectiveness for Moderna and Pfizer against Delta, while Johnson & Johnson's effectiveness increased. The video also covers booster shot recommendations and the need for FDA approval.

What is the current recommendation regarding booster shots for the Johnson and Johnson vaccine?

What did Pfizer submit regarding their clinical trial data, and what did it show?