CDC: Pfizer & Moderna COVID vaccines found 90 percent effective in 'real-world' study

The Pfizer and Moderna Covid-19 vaccines are extremely effective in the real world, reducing infections by 90 percent in fully vaccinated people, the Centers for Disease Control and Prevention reported Monday.

CDC Director Dr. Rochelle Walensky called the study "tremendously encouraging" in a briefing Monday, adding that it "underscored the importance of getting both of the recommended doses of the vaccine in order to get the greatest level of protection against Covid-19, especially as our concerns about variants escalate."