Figure 2.
Scheme of nasal physiology and SARS-CoV-2. The image illustrates the different parts of the nose that create the nasal barrier. Nasal mucosa and nasal microbiota cooperate and improve the protection against virus infection.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.