A nasal vaccine was found to reduce the risk of symptomatic Covid infections by 86% for three months in people who received it as a booster dose, according to a preliminary clinical trial. Researchers also recorded fewer side effects with the new vaccine.
University of GeorgiaAn experimental nasal vaccine provided strong protection against Covid infection, according to preliminary results from a Phase 1 clinical trial., developed by a startup called Blue Lake Biotechnology Inc., was found to reduce the risk of symptomatic Covid infections by 86% for three months in people who received it as a booster dose.
Nasal Covid vaccines have been approved in India, Iran and Russia, and two others are in use in China, along with an “This is only Phase 1 and we need to do at least three phases, but we’re very encouraged and excited about this,” He said. Unlike more “sterile” environments in the bloodstream, the nose and lungs have to look for specific danger signals to separate real threats from more innocuous substances.
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