We report data regarding the molecular epidemiology of human astrovirus (HAstV) infections among children in Madagascar. In a 13-month study, 5 HAstV isolates were detected in fecal samples from 237 children (2.1%) by reverse transcription-PCR. Phylogenetic analysis showed the cocirculation of usual and unusual HAstVs.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2600253PMC
http://dx.doi.org/10.3201/eid1405.070563DOI Listing

Publication Analysis

Top Keywords

human astrovirus
8
children madagascar
8
astrovirus gastroenteritis
4
gastroenteritis children
4
madagascar 2004-2005
4
2004-2005 report
4
report data
4
data molecular
4
molecular epidemiology
4
epidemiology human
4

Similar Publications

Background: Viral gastroenteritis is a significant global health concern. An effective, rapid, and easy-to-use diagnostic tool is essential for screening causative viruses.

Methods: Forty-eight samples, known to be infected with one of the following viruses: norovirus, group A rotavirus, astrovirus, adenovirus, and sapovirus determined by reverse transcription-PCR and nucleotide sequencing, were evaluated by the Fast Track Diagnostics (FTD) viral gastroenteritis assay.

View Article and Find Full Text PDF

Porcine astrovirus (PoAstV), porcine sapovirus (PoSaV), porcine norovirus (PoNoV), and porcine rotavirus A (PoRVA) are newly discovered important porcine diarrhea viruses with a wide range of hosts and zoonotic potential, and their co-infections are often found in pig herds. In this study, the specific primers and probes were designed targeting the ORF1 gene of PoAstV, PoSaV, and PoNoV, and the VP6 gene of PoRVA. The recombinant standard plasmids were constructed, the reaction conditions (concentration of primers and probes, annealing temperature, and reaction cycle) were optimized, and the specificity, sensitivity, and reproducibility were analyzed to establish a quadruplex real-time quantitative RT-PCR (RT-qPCR) assay for the detection of these four diarrheal viruses.

View Article and Find Full Text PDF

As astroviral infection rapidly increased in the summer of 2022 in Korea, this study aimed to determine the cause and genotype of astroviruses during this period. From January to December 2022, we tested 43,312 stool samples from patients with acute gastroenteritis utilizing multiplex PCR to detect HAstV. For the HAstV-positive samples, we determined the genotypes of the HAstVs by PCR and sequencing.

View Article and Find Full Text PDF

The use of human intestinal enteroid cell cultures for detection of multiple gastroenteric viruses.

J Virol Methods

December 2024

Office of Applied Microbiology and Technology, Office of Laboratory Operations and Applied Science, Human Foods Program, Food and Drug Administration, Laurel, MD 20708, USA.

Human norovirus (HuNoV) and human astrovirus (HAstV) are viral enteric pathogens and known causative agents of acute gastroenteritis. Identifying the presence of these viruses in environmental samples such as irrigation water, or foods exposed to virus contaminated water (e.g.

View Article and Find Full Text PDF

Objective: To evaluate the use of a multiplex real-time polymerase chain reaction (RT-PCR) test in detecting three viruses namely Rotavirus, Norovirus (genotypes 1 and 2), and Astrovirus that cause gastroenteritis in children under the age of five years.

Study Design: A cross-sectional study. Place and Duration of the Study: Department of Virology, Armed Forces Institute of Pathology (AFIP), Rawalpindi, Pakistan, from January to July 2023.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!