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 primary reason the CDC recommends booster shots?

• To increase vaccine sales

• To enhance protection against severe outcomes

• To reduce the number of vaccine doses

• To eliminate the need for masks

How did the effectiveness of the Pfizer vaccine change in Israel from January to July?

• It increased from 39% to 95%

• It remained constant at 95%

• It decreased from 95% to 39%

• It increased from 76% to 95%

Which vaccine showed an increase in effectiveness over an eight-month period?

• AstraZeneca

• Pfizer

• Moderna

• Johnson & Johnson

What is the reported effectiveness of Moderna against the Delta variant?

• 39%

• 42%

• 95%

• 76%

What is the role of the FDA in the context of booster shots?

• To manufacture booster shots

• To approve booster shots after reviewing clinical data

• To distribute booster shots to the public

• To ban booster shots