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.
Mandrell RE, Lesse AJ, Sugai JV, Shero M, Griffiss JM, Cole JA, Parsons NJ, Smith H, Morse SA, Apicella MA.Mandrell RE, et al. Among authors: morse sa.J Exp Med. 1990 May 1;171(5):1649-64. doi: 10.1084/jem.171.5.1649.J Exp Med. 1990.PMID: 1692081Free PMC article.