Are COVID-19 Vaccines Effective Against the Delta Variant?
Are COVID-19 Vaccines Effective Against the Delta Variant? According to data from a national study, vaccines are effective at preventing hospitalizations and emergency medical visits related to COVID-19. The same study also shows that Moderna's vaccine is the most effective, significantly reducing hospitalizations even in the presence of the new COVID-19 variant. Vaccines are strongly recommended to everyone eligible to reduce serious illness and ease the burden on our healthcare system. The data, provided by the Centers for Disease Control and Prevention (CDC)'s VISION Network, included more than 32,000 medical encounters from nine states during June, July, and August 2021. During this time, when the variant became the predominant strain, the study showed that vaccinated people are 5-7 times less likely to need emergency department care or hospitalization. This overall effect is similar to before the variant. In the study, the vaccines were effective at preventing hospitalizations in adults 18 and older as follows:
- Moderna was 95 percent effective
- Pfizer was 80 percent effective
- Johnson and Johnson was 60 percent effective
- Moderna was 92 pecrent effective
- Pfizer was 77 percent effective
- Johnson and Johnson was 65 percent effective