Astroviridae


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Astroviridae

(as″trŏ-vēr′ĭ′dē) [ astrovir(us) + -idea]
A family of spherical or star-shaped, single-stranded RNA viruses distributed worldwide. The virus causes epidemic viral gastroenteritis in adults and children. The incubation period has been estimated to be 3 to 4 days. The outbreaks are self-limiting and in the absence of coexisting pathogens, the intestinal signs and symptoms last 5 days or less. Treatment, if required, is supportive and directed to maintaining hydration and electrolyte balance.
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The family Astroviridae is currently divided into 2 genera: the genus Mamastrovirus of mammal-infecting viruses and the genus Avastrovirus of avian viruses (3,4).
Los astrovirus (AstV), pequenos virus con genoma de ARN de cadena simple, de la familia Astroviridae, son la causa mas comun de gastroenteritis no solamente en ninos pequenos (menores de 2 anos) inmunocompetentes, sino tambien entre los ancianos y pacientes inmunodeficientes (44).
13,14) The Astrovirus (AstV), Astroviridae family, a small round virus, has been associated with AGE, with a frequency range between 2% to 26%.
Los VE comunmente asociados con enfermedad en humanos pertenecen a las familias Adenoviridae (Adenovirus), Caliciviridae (Norovirus, Sapovirus), Picornaviridae (Enterovirus, virus hepatitis A y Echovirus), Reoviridae (Reovirus y Rotavirus), y Astroviridae (Astrovirus).
Astroviruses, family Astroviridae, are small, nonenveloped, single-stranded RNA viruses.
The family Astroviridae comprises 2 genera, Mamastrovirus and Avastrovirus, known to infect mammals and birds, respectively.
The implications of these findings were obscured by the fact that the brain homogenate also included sequences with partial analogy to viruses of the family Astroviridae and family Retroviridae.
Avian nephritis virus (ANV) as a new member of the family Astroviridae and construction of infectious ANV cDNA.
Five microliters of RNA/DNA eluate were tested by broad range reverse transcription-PCR (RT-PCR) assays for the whole subfamily Coronavirinae (16), the family Astroviridae (4), and the genus Mastadenovirus (18).
Human astroviruses (HAstVs) belong to the Astroviridae family, which is divided into 2 genera: Mamastrovirus (mammalian viruses) and Avastrovirus (avian viruses) (1).