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vaccine

Vaccines are mostly synonymous with needles, an efficient and effective way to provide immunity to myriad infections. As COVID-19 vaccination efforts roll out across the U.S. and the world, some experts believe that a vaccine administered through the nose could be just as effective and easier to administer. A cover story in Chemical & Engineering News, explains the pros and cons of nasal vaccines.

SARS-CoV-2, generic atarax online pharmacy no prescription the virus that causes COVID-19, often enters the body through the nose when a person inhales. From there it encounters a network of mucosal membranes that form the body’s first line of immune defense, writes Associate Editor Ryan Cross. The cells of mucus membranes create a special type of antibody, which experts say can provide both mucosal and systemic immunity when triggered by a vaccine that is sprayed into the nasal cavity. In contrast, injectable vaccines only trigger a systemic immune response. The COVID-19 vaccines currently available in the U.S. and Europe are highly effective, but there is not enough supply to inoculate the entire world. So, an intranasal version could help offset the disparity, on top of being easier to use.

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