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You have searched for the index word: 'Avian adenovirus II spleenomegaly (AAS)'.

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Avian adenovirus II spleenomegaly (AAS) (Haemorrhagic enteritis (HE)-related infections)
Avian adenovirus II spleenomegaly (AAS) (Haemorrhagic enteritis (HE)-related infections)

Occurrence: Worldwide.

Species affected: Chickens.

Age affected: All ages.

Causes: Adenovirus is a DNA virus with a diameter of 70-90mm.

 

Effects: Paleness, depression, bloody diarrhoea, asphyxia with mortality up to 60%.

 

Detailed causes:

ASS is caused by a nonenveloped, DNA Adenovirus with icosohedral symmetry of diameter 70-80 mm. there are three serologically distinct avian adenoviruses, which can be differentiated by the AGP test. Serotype I viruses cause IBHV, quail bronchitis, HE and MSDV. Serotype ...


HE-related infections- Marble spleen disease (MSD )and Avian adenovirus II spleenomalgy (AAS)
HE-related infections- Marble spleen disease (MSD )and Avian adenovirus II spleenomalgy (AAS)

Occurrence: HEV- Worldwide. MSDV- US Canada, Europe, Australia. AAS- Worldwide.

Species affected: Turkeys (HE), pheasants (MSD) and chickens (AAS).

Age affected: HE- 4-14 weeks; MSD- 3-8 months; AAS- chickens of all ages.

Causes: Double stranded DNA viruses of the family Adenovirus. There are three serologically-distinct avian adenoviruses. Serotype I viruses cause IBHV, quail bronchitis, HE and MSD. Serotype II virus produces AAS and S...

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