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.
Middleton DB, Fox DE, Nowalk MP, Skledar SJ, Sokos DR, Zimmerman RK, Ervin KA, Lin CJ.Middleton DB, et al.Infect Control Hosp Epidemiol. 2005 Nov;26(11):874-81. doi: 10.1086/502511.Infect Control Hosp Epidemiol. 2005.PMID: 16320983