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.
Dunn BE, Roop RM 2nd, Sung CC, Sharma SA, Perez-Perez GI, Blaser MJ.Dunn BE, et al. Among authors: blaser mj.Infect Immun. 1992 May;60(5):1946-51. doi: 10.1128/iai.60.5.1946-1951.1992.Infect Immun. 1992.PMID: 1563786Free PMC article.