RESUMO
Acute gastroenteritis (AGE) is associated with significant global morbidity and mortality, especially among children under five years of age. Viruses are well established as etiologic agents of gastroenteritis since they are the most common pathogens that contribute to the disease burden in developing countries. Despite the advances in molecular diagnosis, a substantial proportion of AGE etiology remain unresolved. We implemented a viral metagenomics pipeline to determine the potential viral etiology associated with AGE among children under the age of five years in Qatar with undiagnosed etiology. Following enriching for the viral genome, â¼1.3 billion sequences were generated from 89 stool specimens using the Illumina HiSeq platform, of which 7% were mapped to viral genomes. Human viruses were detected in 34 specimens (38.2%); 14 were adenovirus, nine coxsackievirus A16, five rotavirus (G9P[8] and G4P[8]), four norovirus (GII), one influenza A virus (H3), and one respiratory syncytial virus A (RSVA). In conclusion, the viral metagenomics approach is useful for determining AGE's etiology when routine molecular diagnostic assays fail.
Assuntos
Gastroenterite , Rotavirus , Vírus , Humanos , Criança , Lactente , Pré-Escolar , Catar/epidemiologia , Fezes , Gastroenterite/diagnóstico , Gastroenterite/epidemiologia , Rotavirus/genética , Vírus/genéticaRESUMO
In 2018, a hepatitis A virus outbreak was identified among internally displaced persons in Syria. Sequence analysis based on the viral protein 1/2A junction revealed that the causative virus belonged to genotype IB. A high displacement rate, deteriorated sanitary and health conditions, and poor water quality likely contributed to this outbreak.
Assuntos
Vírus da Hepatite A/isolamento & purificação , Hepatite A/epidemiologia , Refugiados , Adolescente , Adulto , Criança , Surtos de Doenças , Feminino , Genótipo , Hepatite A/etiologia , Vírus da Hepatite A/genética , Humanos , Masculino , Pessoa de Meia-Idade , Síria/epidemiologia , Abastecimento de Água , Adulto JovemRESUMO
We report here the complete genome sequence of a human respiratory syncytial virus (HRSV) strain obtained from an infant who presented to the emergency room with an acute respiratory illness during the 2014/2015 HRSV season in Lebanon. Analysis revealed that this virus belongs to the ON1 genotype that has recently emerged worldwide.