Effectiveness of COVID Vaccines Drops Significantly Over Time

“The effectiveness of all three coronavirus vaccines available in the United States has dropped substantially after six months, new research published in the journal Science reveals. The most dramatic drop was from Johnson & Johnson’s shot, whose effectiveness plummeted to 13.1 percent in September from 86.4 percent in March. During the same time period, Pfizer’s vaccine also fell below the 50 percent effective mark to 43.3 percent from 86.9 percent when it was first administered. Moderna’s effectiveness declined the least, but was still significant at 58 percent from 89.2 percent.”

Effectiveness of COVID Vaccines Drops Significantly Over Time | Newsmax.com

Published by markskidmore

Mark Skidmore is Professor of Economics at Michigan State University where he holds the Morris Chair in State and Local Government Finance and Policy. His research focuses on topics in public finance, regional economics, and the economics of natural disasters. Mark created the Lighthouse Economics website and blog to share economic research and information relevant for navigating tumultuous times.

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