Pathology of an outbreak of highly pathogenic avian influenza A(H5N1) virus of clade 2.3.2.1a in turkeys in Bangladesh.
J Vet Diagn Invest
; 33(1): 124-128, 2021 Jan.
Article
en En
| MEDLINE
| ID: mdl-33054595
ABSTRACT
A mixed-aged flock of 130 turkeys in Bangladesh reported the sudden death of 1 bird in September 2017. Highly pathogenic avian influenza A(H5N1) virus was detected in 3 turkeys, and phylogenetic analysis placed the viruses in the reassortant clade 2.3.2.1a. The birds had clinical signs of depression, diarrhea, weakness, closed eyes, and finally death. The mortality rate of the flock was 13% over the 6 d prior to the flock being euthanized. At autopsy, we observed congestion in lungs and brain, hemorrhages in the trachea, pancreas, breast muscle, coronary fat, intestine, bursa of Fabricius, and kidneys. Histopathology revealed hemorrhagic pneumonia, hemorrhages in the liver and kidneys, and hemorrhages and necrosis in the spleen and pancreas. Significant changes in the brain included gliosis, focal encephalomalacia and encephalitis, and neuronophagia.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Enfermedades de las Aves de Corral
/
Pavos
/
Brotes de Enfermedades
/
Subtipo H5N1 del Virus de la Influenza A
/
Gripe Aviar
Tipo de estudio:
Diagnostic_studies
Límite:
Animals
País/Región como asunto:
Asia
Idioma:
En
Revista:
J Vet Diagn Invest
Asunto de la revista:
MEDICINA VETERINARIA
Año:
2021
Tipo del documento:
Article
País de afiliación:
Bangladesh