Identification of a highly pathogenic Riemerella anatipestifer strain causing duck spleen marble-like necrosis disease in China.
Microb Pathog
; 196: 106912, 2024 Sep 07.
Article
en En
| MEDLINE
| ID: mdl-39250982
ABSTRACT
Duck spleen marble-like necrosis disease (DSMND) has been prevalent in Chinese duck farms since 2016. The etiological study was carried out in this study using etiological detection, pathogen isolation, whole genome sequencing, and artificial infection test. A highly pathogenic Riemerella anatipestifer (RA) strain was determined as the etiologic agent. Phylogenomic analysis showed that this RA strain was closely related to duck origin RA strain RCAD0421 and chicken origin RA strain S63. The clinical symptoms and pathological changes of artificial infection ducks were similar to those of clinical cases. This is the first identification of RA as the pathogen of DSMND, which provides a theoretical basis for this disease' s prevention and control.
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2024
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Article