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.
El Beltagy K, El-Saed A, Sallah M, Balkhy HH.El Beltagy K, et al. Among authors: balkhy hh.J Infect Public Health. 2012 Aug;5(4):297-303. doi: 10.1016/j.jiph.2012.04.002. Epub 2012 May 30.J Infect Public Health. 2012.PMID: 23021652Free article.