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.
Taylor DN, Phillip DF, Zapor M, Trofa A, Van de Verg L, Hartman A, Bendiuk N, Newland JW, Formal SB, Sadoff JC, et al.Taylor DN, et al. Among authors: newland jw.Vaccine. 1994 May;12(6):565-8. doi: 10.1016/0264-410x(94)90318-2.Vaccine. 1994.PMID: 8036831Clinical Trial.