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.
Römer-Oberdörfer A, Veits J, Helferich D, Mettenleiter TC.Römer-Oberdörfer A, et al. Among authors: helferich d.Vaccine. 2008 May 2;26(19):2307-13. doi: 10.1016/j.vaccine.2008.02.061. Epub 2008 Mar 18.Vaccine. 2008.PMID: 18395947
Veits J, Römer-Oberdörfer A, Helferich D, Durban M, Suezer Y, Sutter G, Mettenleiter TC.Veits J, et al. Among authors: helferich d.Vaccine. 2008 Mar 20;26(13):1688-96. doi: 10.1016/j.vaccine.2008.01.016. Epub 2008 Feb 4.Vaccine. 2008.PMID: 18291561