Avian Astroviruses

Authored by: Victoria Smyth

Molecular Detection of Animal Viral Pathogens

Print publication date:  August  2016
Online publication date:  May  2016

Print ISBN: 9781498700368
eBook ISBN: 9781498700375
Adobe ISBN:


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Astroviruses are small, round, nonenveloped viruses typically 25-35 nm in diameter with a positive-sensed, single-stranded RNA genome ranging in length from approximately 6.2 kb (human) to 7.7 kb (duck).1 They are generally classified according to the species they infect, although species crossover has been observed for some astroviruses, for example, astroviruses of chickens have been detected in turkeys.2 Astroviruses have been discovered to infect many species including humans. The first observations of astroviruses in humans were in 1975 in the feces of children with diarrhea and gastroenteritis by Appleton and Higgens3 and Madeley and Cosgrove, who named this group of viruses because of its characteristic star-like appearance.4

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