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.
Anacker RL, List RH, Mann RE, Hayes SF, Thomas LA.Anacker RL, et al.J Infect Dis. 1985 Jun;151(6):1052-60. doi: 10.1093/infdis/151.6.1052.J Infect Dis. 1985.PMID: 3923129
Anacker RL, Philip RN, Williams JC, List RH, Mann RE.Anacker RL, et al.Infect Immun. 1984 Jun;44(3):559-64. doi: 10.1128/iai.44.3.559-564.1984.Infect Immun. 1984.PMID: 6427110Free PMC article.