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.
Severity of NH. (A) Score, 0: no lesions (6-wk-old female C57BL/6 female mouse euthanized by SF). (B) Score, 3: severe NH lesions, with RBC occupying 10% or more of the total nasal sinus space (6-wk-old BALB/c female mouse euthanized by PF). Hematoxylin and eosin stain; magnification, 10×.
