Scientific American: Nose Spray Vaccines Could Quash COVID Virus Variants

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Scientists are developing a way to block the first site of contact of the virus: the nose. There are currently eight nasal vaccines that are under development with three of them in phase 3 trials. But, producing these vaccines have been very slow because of the distinct formulas they require. These nasal sprays can provide mucosal immunities, which is different from the standard arm shots. The mucosal system antibodies can block the fast traveling Covid virus. Some of the sprays work to encapsulate the coronavirus’ spike proteins, others add the gene for the spike to become harmless versions of the virus, and others are relying on synthetically bioengineered SARS-CoV-2 to be converted into a weakened form. For the full article, click here. For more information about Covid-19, click here.

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