background: the aim of the study was to determine the incidence of non-bacterial acute gastroenteritis associated with diar­rheal diseases in mazandaran province, northern iran. methods: a total of 400 symptomatic cases from patients with acute gastroenteritis from mazandaran province in iran were screened using eia method for the presence of rotavirus, adenovirus and astrovirus during 2005-200...

The global epidemiological landscape of childhood acute gastroenteritis (AGE) is changing after the introduction of 2 effective rotavirus vaccines in 2006. A comprehensive evaluation for viral etiology of childhood AGE in Taiwan, where rotavirus vaccination was provided by the private sector since 2006, is lacking.From 2009 to 2011, children younger than 5 years of age with AGE who were hospita...

The emergence of avian diseases can cause major economic problems due to production losses and mortality in domestic poultry. Astrovirus is frequently associated with enteric poultry, being isolated from cases runting-stunting syndrome (RSS) broiler chickens, poult enteritis complex (PEC), (PEMS) turkeys. Avian astrovirus be detected chickens both healthy poorly performing flocks. In Malaysia, ...

BACKGROUND Wild birds are an important but to some extent under-studied reservoir for emerging pathogens. We used unbiased sequencing methods for virus discovery in shorebird samples from the Delaware Bay, USA; an important feeding ground for thousands of migratory birds. FINDINGS Analysis of shorebird fecal samples indicated the presence of a novel astrovirus and coronavirus. A sanderling sa...

We analyzed fecal samples from hospitalized children up to three years of age with acute gastroenteritis at Campo Grande, Mato Grosso do Sul, Brazil, from May 2000-January 2004. Astrovirus and calicivirus were detected by Reverse Transcription-Polymerase Chain Reaction and adenovirus was detected using the Rotavirus and Adenovirus combined immunoenzyme assay. Astrovirus, adenovirus and calicivi...

Astrovirus contains three open reading frames (ORF) on its genomic RNA, ORF1a, ORF1b, and ORF2. ORF1a encodes a 920-amino-acid (aa) nonstructural protein, nsP1a, which displays a 3C-like serine protease motif. Little is known about the processing of nsP1a or whether the protease it contains is active and involved in autocatalytic processing. Here we address both of these matters. Intact and N-t...

NO abstract this article: Phylogenetic Analysis of Human Astrovirus Infection among Children Suffering from Gastroenteritis Referred to Aboozar Hospital, Ahvaz, Iran

In addition to the eight genotypes of classic human astroviruses, seven new genotypes have been reported from two novel clades, MLB and VA. However, the epidemiology of these highly diverse astroviruses remains largely unknown. We report here the complete genome sequences of two MLB1 strains from Bhutanese children with diarrhea.

We present the sequence of an open reading frame (ORF) at the 3' end of human astrovirus serotype 1. Primer extension experiments showed that the RNA expressing this gene is shorter than the complete ORF, and could form a protein of M(r) 85,540. The protein was expressed by recombinant baculovirus and was recognized by anti-virion serum, indicating a structural role. Sequence comparison indicat...