1. FMD virus isolates: the candidate strains for polyvalent vaccine development in Ethiopia.
- Author
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Ayelet G, Soressa M, Sisay T, Belay A, Gelaye E, Jembere S, Skjerve E, and Asmare K
- Subjects
- Animals, Cattle, Cross Reactions, Ethiopia, Swine, Antibodies, Neutralizing immunology, Antibodies, Viral immunology, Foot-and-Mouth Disease virology, Foot-and-Mouth Disease Virus immunology, Foot-and-Mouth Disease Virus isolation & purification, Viral Vaccines immunology
- Abstract
The study was conducted on foot-and-mouth disease (FMD) viruses with the aim of selecting appropriate vaccinal strain to control of FMD in Ethiopia. The study was conducted in two-dimensional virus neutralization assay to determine the antigenic relationship 'r' value between the candidate vaccine strains and field isolates. A total of 21 serotype O, 7 serotype A, and 8 serotype SAT 2 FMD viruses, which were isolated from cattle and swine. A couple of isolates from each serotype were identified as vaccine candidates in the trial (O-ETH/38/2005, O-ETH/58/2008, A-ETH/7/2008, A-ETH/6/2000, SAT2-ETH/76/2009 and SAT2-ETH/64/2009). The finding revealed all the vaccine candidate depicted high antigenic similarity, above the mean "r" value, to their own serotypes in the studied serotype population except for one serotype A field isolate, A-ETH/13/1981, with "r" value=0.14 and 0.25) which is significantly lower than the minimum requirement. In general, the result indicated that these candidate vaccinal strains can be used for polyvalent vaccine production in the country., (Copyright © 2013 Elsevier B.V. All rights reserved.)
- Published
- 2013
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