An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Frieman M, Yount B, Heise M, Kopecky-Bromberg SA, Palese P, Baric RS.Frieman M, et al. Among authors: baric rs.J Virol. 2007 Sep;81(18):9812-24. doi: 10.1128/JVI.01012-07. Epub 2007 Jun 27.J Virol. 2007.PMID: 17596301Free PMC article.