Why pharmaceutical companies don’t all use the same ‘recipe’ for their vaccines


Boxes containing the Moderna COVID-19 vaccine are prepared to be shipped at the McKesson distribution center in Olive Branch, Miss., Sunday, Dec. 20, 2020. (AP Photo/Paul Sancya, Pool)

Doctor Robert Murphy is the Professor of Infectious Diseases at the Northwestern Feinberg School of Medicine. Dr. Murphy talks about the 72% efficacy rate of the Johnson & Johnson vaccine compared to the higher efficacy rates of the Pfizer and Moderna vaccines. He says it’s smarter to take the Johnson & Johnson vaccine rather than waiting longer for the ones with higher efficacy rates. Dr. Murphy also talks about why pharmaceutical companies don’t all produce the same vaccine.

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