What does the Johnson & Johnson vaccine pause mean for all COVID-19 shots?
With distribution of the Johnson & Johnson vaccine temporarily on ice, “we’re putting really all our eggs in the basket of Pfizer and Moderna” to inoculate the millions of people in the U.S. who will become eligible for a shot on April 19, says Nada Sanders, distinguished professor of supply chain management. And that’s a risky, if necessary, bet.