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.
Winkelmann ER, Widman DG, Xia J, Johnson AJ, van Rooijen N, Mason PW, Bourne N, Milligan GN.Winkelmann ER, et al. Among authors: bourne n.Virology. 2014 Feb;450-451:278-89. doi: 10.1016/j.virol.2013.12.021. Epub 2014 Jan 10.Virology. 2014.PMID: 24503091Free PMC article.