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.
Nataro JP, Deng Y, Maneval DR, German AL, Martin WC, Levine MM.Nataro JP, et al. Among authors: maneval dr.Infect Immun. 1992 Jun;60(6):2297-304. doi: 10.1128/iai.60.6.2297-2304.1992.Infect Immun. 1992.PMID: 1350273Free PMC article.
Comstock LE, Maneval D Jr, Panigrahi P, Joseph A, Levine MM, Kaper JB, Morris JG Jr, Johnson JA.Comstock LE, et al.Infect Immun. 1995 Jan;63(1):317-23. doi: 10.1128/iai.63.1.317-323.1995.Infect Immun. 1995.PMID: 7528734Free PMC article.
Levine MM, Ferreccio C, Prado V, Cayazzo M, Abrego P, Martinez J, Maggi L, Baldini MM, Martin W, Maneval D, et al.Levine MM, et al.Am J Epidemiol. 1993 Nov 15;138(10):849-69. doi: 10.1093/oxfordjournals.aje.a116788.Am J Epidemiol. 1993.PMID: 8237973