COVID-19 | What the second generation of vaccines will look like and why they are important

World Health Organization Chief Scientific Officer Soumya Swaminathan said Tuesday that she was looking forward to the “second generation” of vaccines against COVID-19, which could include nasal or oral versions.

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Soumya Swaminathan indicated that these vaccines would present advantages over current ones, since even the same patient could do it.

Swaminathan explained that there were 129 coronavirus vaccine candidates that were being tested in humans in clinical trials, and another 194 that were still being developed in laboratories.

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“This covers the entire spectrum of technologies”he said in a live interaction on WHO’s social media. “They are still in development, some will be demonstratedyes, and others may not “he added.

The scientist pointed out that “There may be advantages to some of the second-generation vaccines.” “Clearly, if you have an oral or intranasal vaccine, it is a lot than an injectable ”, explained.

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In addition, nasal spray vaccines, used in some countries against the flu, can promote an earlier response to infection.

“If there is a local immune response, it will take care of the virus before it becomes established in the lungs and begins to cause problems.”, said.

Until now, the WHO has licensed seven COVID-19 vaccines: Pfizer / BioNTech, Moderna, AstraZeneca, Johnson & Johnson, Sinopharm, Sinovac and, last week, Bharat Biotech.

Nobody ever said that vaccines were going to be 100% protective “, he indicated.

“So far, with the vaccines that we have approved, there has been no sign that has been so concerning that we had to (…) rethink the vaccine,” added.

According to the AFP balance, more than 7.25 billion doses of anticovid vaccines have been administered in the world.

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