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CDC & Pfizer Engineer Cleavage-Optimized Bird Flu Strains For New mRNA Shot

Summary by modernity.news
This post was published by Jon Fleetwood. Support him by subscribing at Substack and following at Instagram / X / Facebook. Researchers from the U.S. Centers for Disease Control and Prevention (CDC) and Pfizer Inc. have created new, engineered H5 bird flu influenza genetic constructs, including a codon-optimized hemagglutinin (HA) gene with a synthetically altered cleavage site, as documented in a Saturday npj Vaccines publication. According to…
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modernity.news broke the news in on Tuesday, December 2, 2025.
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