MedPageToday, May 11, 2021, by by Veronica Hackethal

Nasal Vaccines for COVID-19?

 Some argue intranasal vaccines, still in early trials, may be better at blocking transmission

Despite an arsenal of highly effective injectable vaccines, drugmakers are looking into products that will be easier to store, transport, and administer in the global crisis — particularly, intranasal vaccines.

Could these vaccines also hold an advantage when it comes to blocking transmission? While more data has suggested the vaccines authorized in the U.S. cut transmission, some experts have argued that intranasal vaccines may do an even better job of this.

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