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Astroviruses

 
, medical expert
Last reviewed: 20.11.2021
 
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Astroviruses were discovered in 1975 with an electron microscopic study of excrement of 120 children under 2 years old suffering from gastroenteritis. With electron microscopy, the virion had a typical star shape, so it was given to him the name astrovirus (Greek astron - star).

Astroviruses can cause diarrhea in animals. Astroviruses have a size of about 28 nm. The genome is represented by single-stranded RNA. Astroviruses belong to the family Caliciviridae.

There are 5 of their serotypes. A pervasive disease in humans - diarrhea in newborns - causes serotype 1 in 75 cases. Two structural proteins are found in the virion. Astroviruses are hardly cultivated in human and monkey cell cultures without a cytopathic effect, so the virion is detected by immunofluorescence in a cell culture. To detect the astrovirus in the excrements of patients, the method of immune electron microscopy can be used.

trusted-source[1], [2], [3], [4], [5], [6], [7], [8], [9], [10], [11], [12], [13], [14], [15], [16], [17]

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