Vaccine cocktails look viable—just in time for hot-vax summer

May 23, 2021.Reading time 5 minutes.

A clinical trial based in Spain of around 600 participants (aged 18-59) reported encouraging results regarding mix-and-match vaccines (or “heterologous prime-and-boost,” if you want the jargon) meaning one shot of one vaccine and the second shot of another. In this study, the first dose given was AstraZeneca, and the second was Pfizer.

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Thinking about vaccine results (AstraZeneca redux)

November 29, 2020.Reading time 7 minutes.

The 70% effectiveness rate that AstraZeneca and the University of Oxford announced last Monday is promising at first glance, but details about this vaccine’s clinical trials have puzzled epidemiologists. Here’s what to consider as we await more details on AstraZeneca and Oxford’s findings, drawing on reports from STAT News, Nature, and the New York Times.

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