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.
Capsules from B3501 and KN99α had similar permeability to dextran. A dextran penetration assay was performed using tetramethylrhodamine-labeled dextran of molecular weights 10, 40 and 70 kDa. The penetration of dextrans into the capsule was similar for both strains.
