Molecular detection of human enteric viruses circulating among children with acute gastroenteritis in Valencia, Venezuela, before rotavirus vaccine implementation

Gut Pathogens
Ana C AlcaláEsmeralda Vizzi

Abstract

The role of rotavirus as main etiologic agent of diarrhea has been well documented worldwide, including in Venezuela. However, information about the prevalence of gastrointestinal viruses such as calicivirus, adenovirus and astrovirus is limited and the contribution of other agents as Aichi virus and klassevirus is largely unknown. To explore the etiological spectrum of diarrhea associated with agents other than rotaviruses, 227 stool samples from children under 5 years old with acute gastroenteritis, collected in Valencia (Venezuela) from 2001 to 2005, and previously tested as rotavirus-negative, were analyzed for caliciviruses, adenoviruses, astroviruses, Aichi viruses, klasseviruses, picobirnaviruses and enteroviruses by specific RT-PCRs. At least one viral agent was detected in 134 (59%) of the samples analyzed, mainly from children under 24 months of age and most of them belonging to the lowest socioeconomic status. Overall, enterovirus was identified as the most common viral agent (37.9%), followed by calicivirus (23.3%), adenovirus (11.5%), astrovirus (3.5%), klassevirus (1.3%) and Aichi virus (0.4%), while no picobirnavirus was detected. Klasseviruses were found during 2004 and 2005 and Aichi viruses only in 2005, indic...Continue Reading

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Jun 20, 2019·Journal of Medical Microbiology·Luana S SoaresJoana D P Mascarenhas
Apr 29, 2020·Virologica Sinica·Enrique Rivadulla, Jesús L Romalde
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Jun 2, 2020·Japanese Journal of Infectious Diseases·Gyu Ri KimJeong Hwan Shin
Aug 11, 2020·Current Opinion in Infectious Diseases·Benjamin LeeJames A Platts-Mills

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Methods Mentioned

BETA
PCR
electrophoresis
genotyping

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