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The World Health Organization reports that at least nine laboratories and companies around the world are working to produce a vaccine against COVID-19 in the form of a nasal spray.
These vaccines can be even more effective than the injection as they can stop the coronavirus from the moment it starts entering the body.
And by stopping the virus from multiplying in the nose and throat, nasal vaccines can also be more effective in preventing the spread from one person to another. This is especially important for the Omicron variant, which is spreading rapidly. Most of these vaccines are in the early or middle stage of testing and it is not clear when they will be available. One of the vaccines has already been excluded from the testing process.
“I am optimistic that there will be a contribution from this type of vaccine against the pandemic, especially in its concluding phase,” said Michael Diamon, professor of immunology at the University of Washington in St. Petersburg. Louis.
While current vaccines against COVID-19 have very well managed to prepare most of our immune system, they have one key weak point: the nose, throat and mucous membranes, where the body comes in contact with the outside world.
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