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.
Lukashevich IS, Djavani M, Shapiro K, Sanchez A, Ravkov E, Nichol ST, Salvato MS.Lukashevich IS, et al. Among authors: nichol st.J Gen Virol. 1997 Mar;78 ( Pt 3)(Pt 3):547-51. doi: 10.1099/0022-1317-78-3-547.J Gen Virol. 1997.PMID: 9049403Free PMC article.
Henderson WW, Monroe MC, St Jeor SC, Thayer WP, Rowe JE, Peters CJ, Nichol ST.Henderson WW, et al. Among authors: nichol st, st jeor sc.Virology. 1995 Dec 20;214(2):602-10. doi: 10.1006/viro.1995.0071.Virology. 1995.PMID: 8553562Free article.