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Moderna vaccine highly effective two weeks after first dose

By Brian Buntz | June 16, 2021

ModernaA study published in JAMA involving healthcare workers found that the first dose of Moderna’s (NSDQ:MRNA) COVID-19 vaccine was highly effective at reducing the risk of COVID-19 infections.

In the study, participants received two doses of the vaccine at the recommended 28-day interval. Clinical effectiveness reached 95% for days 15 through 42 of the study. But constraining the window to days 15 to 28 resulted in similar results.

The findings suggest that the vaccine can rapidly reduce the incidence of vaccine-sensitive SARS-CoV-2 infection in healthcare workers.

Even eight days after administration of the first dose, the vaccine yielded greater than 70% efficacy.

The study authors concluded that their findings were in line with aggregated data for the Pfizer-BioNTech BNT162b2 and Moderna’s mRNA-1273 vaccines.

The 42-day study began on Dec. 22, 2020. It involved 4,028 participants.

A number of healthcare workers have made headlines recently weeks for resisting vaccination requirements. A U.S. federal judge recently through out a suit from 117 workers at Houston Methodist hospital. Workers at the Indiana University Health have also resisted a vaccine mandate.


Filed Under: Infectious Disease
Tagged With: BioNTech, COVID-19 vaccine, Moderna, mRNA-1273, Pfizer, SARS-CoV-2
 

About The Author

Brian Buntz

As the pharma and biotech editor at WTWH Media, Brian has almost two decades of experience in B2B media, with a focus on healthcare and technology. While he has long maintained a keen interest in AI, more recently Brian has made making data analysis a central focus, and is exploring tools ranging from NLP and clustering to predictive analytics.

Throughout his 18-year tenure, Brian has covered an array of life science topics, including clinical trials, medical devices, and drug discovery and development. Prior to WTWH, he held the title of content director at Informa, where he focused on topics such as connected devices, cybersecurity, AI and Industry 4.0. A dedicated decade at UBM saw Brian providing in-depth coverage of the medical device sector. Engage with Brian on LinkedIn or drop him an email at bbuntz@wtwhmedia.com.

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