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| Titel: |
A potential new serotype of Riemerella anatipestifer isolated from ducks in Thailand |
| Auteur: |
Pathanasophon, Pornpen Phuektes, Patchara Tanticharoenyos, Tipa Narongsak, Watcharachai Sawada, Takuo |
| Verschenen in: |
Avian pathology |
| Paginering: | Jaargang 31 (2002) nr. 3 pagina's 267-270 |
| Jaar: |
2002-06 |
| Inhoud: |
Eighty isolates of Riemerella anatipestifer representing 71 outbreaks of riemerellosis in Thailand between 1994 and 1999 were serotyped using the gel diffusion precipitin test. Based on the precipitation patterns, 25 serological profiles containing one to three antigenic determinants were recognized. Heat-stable antigens of the organism reacted with antisera raised against 16 known serotypes and an untypable strain 698/95. The most prevalent serotype appeared to be serotype 7, followed by serotypes 5, 10, 21 and 1. Further study demonstrated that the untypable strain probably represents a new serotype. Analysis of the polymerase chain reaction-amplified rrs genes for restriction fragment length polymorphisms verified the inclusion of strain 698/95 within the species R. anatipestifer and supported earlier work excluding strain 670/89, which had originally been designated the reference strain of serotype 20. Therefore, it is suggested that the strain 698/95 could be adopted as a replacement for the reference strain of serotype 20. Attention should be paid to strains with multiple antigenic factors as they may be useful for the preparation of vaccines. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 2 van 15 gevonden artikelen
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