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.
Mokhtar H, Eck M, Morgan SB, Essler SE, Frossard JP, Ruggli N, Graham SP.Mokhtar H, et al. Among authors: graham sp.Vaccine. 2014 Nov 28;32(50):6828-37. doi: 10.1016/j.vaccine.2014.04.054. Epub 2014 May 17.Vaccine. 2014.PMID: 24844151
Walters AA, Somavarapu S, Riitho V, Stewart GR, Charleston B, Steinbach F, Graham SP.Walters AA, et al. Among authors: graham sp.Vaccine. 2015 Nov 27;33(48):6588-95. doi: 10.1016/j.vaccine.2015.10.093. Epub 2015 Nov 1.Vaccine. 2015.PMID: 26529067