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Kim JK, Kayali G, Walker D, Forrest HL, Ellebedy AH, Griffin YS, Rubrum A, Bahgat MM, Kutkat MA, Ali MAA, Aldridge JR, Negovetich NJ, Krauss S, Webby RJ, Webster RG. Puzzling inefficiency of H5N1 influenza vaccines in Egyptian poultry. Proc Natl Acad Sci U S A 2010; 107:11044-9. [PMID: 20534457 PMCID: PMC2890765 DOI: 10.1073/pnas.1006419107] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
In Egypt, efforts to control highly pathogenic H5N1 avian influenza virus in poultry and in humans have failed despite increased biosecurity, quarantine, and vaccination at poultry farms. The ongoing circulation of HP H5N1 avian influenza in Egypt has caused >100 human infections and remains an unresolved threat to veterinary and public health. Here, we describe that the failure of commercially available H5 poultry vaccines in Egypt may be caused in part by the passive transfer of maternal H5N1 antibodies to chicks, inhibiting their immune response to vaccination. We propose that the induction of a protective immune response to H5N1 is suppressed for an extended period in young chickens. This issue, among others, must be resolved and additional steps must be taken before the outbreaks in Egypt can be controlled.
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Affiliation(s)
- Jeong-Ki Kim
- Division of Virology, Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN 38105
- Korea Research Institute of Bioscience and Biotechnology, Daejeon 305-806, Republic of Korea
| | - Ghazi Kayali
- Division of Virology, Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN 38105
| | - David Walker
- Division of Virology, Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN 38105
| | - Heather L. Forrest
- Division of Virology, Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN 38105
| | - Ali H. Ellebedy
- Division of Virology, Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN 38105
| | - Yolanda S. Griffin
- Division of Virology, Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN 38105
| | - Adam Rubrum
- Division of Virology, Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN 38105
| | - Mahmoud M. Bahgat
- Department of Infection Genetics, the Helmholtz Center for Infection Research, Inhoffenstrasse 7, D-38124 Braunschweig, Germany
| | | | - M. A. A. Ali
- Center of Excellence for Advanced Sciences, National Research Center, 12311 Dokki, Giza, Egypt; and
| | - Jerry R. Aldridge
- Division of Virology, Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN 38105
| | - Nicholas J. Negovetich
- Division of Virology, Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN 38105
| | - Scott Krauss
- Division of Virology, Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN 38105
| | - Richard J. Webby
- Division of Virology, Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN 38105
- Department of Pathology, University of Tennessee Health Science Center, Memphis, TN 38106
| | - Robert G. Webster
- Division of Virology, Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN 38105
- Department of Pathology, University of Tennessee Health Science Center, Memphis, TN 38106
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