Filling COVID-19 Vaccine Data Gaps Will Take Time
Timeline for getting data on COVID-19 vaccines ability to prevent transmission is likely pushed due to the decision not to proceed with a NIH study on the topic. CDC warns that it will take more time than people expect to get other key data points filled in and vaccine regimen plans shouldn’t change without such data.
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The US missed even its revised year-end target for COVID vaccines, but the news isn’t all bad; there’s steady progress on clinical research even as federal officials seem out of ideas for how to speed actual vaccinations.
Moderna’s COVID-19 vaccine looks better than Pfizer/BioNTech’s at preventing severe disease and like it may offer some benefit in preventing asymptomatic infections, but these advantages may be short-lived and hard to capitalize on due to supply limitations.