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.
Jones PH, Maric M, Madison MN, Maury W, Roller RJ, Okeoma CM.Jones PH, et al. Among authors: okeoma cm.Virology. 2013 Mar 30;438(1):37-49. doi: 10.1016/j.virol.2013.01.010. Epub 2013 Feb 12.Virology. 2013.PMID: 23411007Free PMC article.