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.
Davis-Poynter N, Farrell HE.Davis-Poynter N, et al.Viruses. 2022 Feb 14;14(2):391. doi: 10.3390/v14020391.Viruses. 2022.PMID: 35215985Free PMC article.
Farrell HE, Bruce K, Redwood AJ, Stevenson PG.Farrell HE, et al.J Gen Virol. 2019 Dec;100(12):1695-1700. doi: 10.1099/jgv.0.001333. Epub 2019 Oct 11.J Gen Virol. 2019.PMID: 31609196