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Detection and Characterization of Enterovirus B73 from a Child in Brazil

Geovani de Oliveira Ribeiro1, Adriana Luchs2, Flávio Augusto de Pádua Milagres3,4,5

  • 1Institute of Biological Sciences, Federal University of Pará, Pará 66075-000, Brazil. geovanibiotec@gmail.com.

Viruses
|January 2, 2019
PubMed

Insights

Enterovirus B73, a novel virus, has been identified in South America for the first time. This study characterizes the TO-127 strain from Brazil, revealing its genetic relation to other Enterovirus B73 strains globally.

Area of Science:

  • Virology
  • Molecular Biology
  • Public Health

Background:

  • Enterovirus B73 (EV-B73) is a recently identified member of the Enterovirus B species.
  • EV-B73 has been detected in various countries including the USA, China, India, Oman, and the Netherlands.

Purpose of the Study:

  • To characterize the first Enterovirus B73 strain detected in South America.
  • To analyze the genetic makeup and evolutionary relationship of the TO-127 strain.

Main Methods:

  • Genome sequencing of the TO-127 strain from a child with acute gastroenteritis in Brazil.
  • Nucleotide similarity analysis compared to existing EV-B73 strains.
  • Phylogenetic analysis to determine evolutionary relationships.

Main Results:

  • The first South American Enterovirus B73 strain, TO-127, was isolated from a child with acute gastroenteritis in Northern Brazil.
  • The TO-127 genome showed 74-75% nucleotide similarity to other international EV-B73 strains.
  • The child was negative for common enteric pathogens, suggesting EV-B73 as a potential cause.

Conclusions:

  • Enterovirus B73 is present in South America.
  • The genetic data suggests Enterovirus B73 is an endemic and widespread virus.
  • Further research is needed to understand the clinical significance and transmission dynamics of EV-B73 in South America.

Keywords:
enterovirus B73gastroenteritispediatric virologyphylogeneticspicornavirusvirome

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