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April 1, 2003Emerging infectious diseasesOpen Access

Molecular Epidemiology of Human Enterovirus 71 Strains and Recent Outbreaks in the Asia-Pacific Region: Comparative Analysis of the VP1 and VP4 Genes

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Population

128 human enterovirus 71 strains isolated from 1970 to 2002, including recent isolates from the Asia-Pacific…

Design

Other

Key result

Phylogenetic analysis of HEV71 strains revealed that multiple genogroups, including B3, B4, C1, C2, and a newly identified C3, have co-circulated and caused major outbreaks in the Asia-Pacific region since 1997.

Authors

MCMary Jane CardosaDPDavid PereraBBBetty A. Brown

Discussion

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Overview

Supports continued HEV71 surveillance in Asia-Pacific; leaves open genogroup-specific prevention strategies.

Study Design

Type

Observational (n=128)

Structured PICO

P
Population
128 human enterovirus 71 strains isolated between 1970 and 2002 were analyzed to determine the molecular epidemiology of recent outbreaks in the Asia-Pacific region.
E
Exposure
Phylogenetic analysis of the VP1 and VP4 genes
O
Outcome
Genetic relationships and genogroup classification of HEV71 strains

This molecular epidemiology study demonstrates that multiple genogroups of HEV71 have co-circulated in the Asia-Pacific region, highlighting the need for continued virological surveillance.

Limitations

  • Many studies failed to provide an accurate diagnosis for the cause of death in fatal cases of HEV71 infection
  • Lower discriminating power when using the VP4 gene compared to the VP1 gene for phylogenetic analysis
  • Strains might not be evenly distributed temporally and geographically

Cite This Study

Cardosa et al. (2003) conducted an observational in Human enterovirus 71 (HEV71) infection (n=128). HEV71 strain isolation and sequencing was evaluated on Genogroup classification based on VP1 and VP4 gene sequences. Phylogenetic analysis of HEV71 strains revealed that multiple genogroups, including B3, B4, C1, C2, and a newly identified C3, have co-circulated and caused major outbreaks in the Asia-Pacific region since 1997.

synapsesocial.com/papers/6a208d253f9b8cb80cc63f37https://doi.org/10.3201/eid0904.020395
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Enterovirus 71 from Fatal and Nonfatal Cases of Hand, Foot and Mouth Disease Epidemics in Malaysia, Japan and Taiwan in 1997-19981999 · 170 citations
  2. 2Outbreak of enterovirus 71 infection in Victoria, Australia, with a high incidence of neurologic involvement1988 · 251 citations
  3. 3Phylogenetic Analysis of Enterovirus 71 Strains Isolated during Linked Epidemics in Malaysia, Singapore, and Western Australia2001 · 284 citations
  4. 4Molecular Epidemiology and Evolution of Enterovirus 71 Strains Isolated from 1970 to 19981999 · 432 citations
  5. 5Change of Major Genotype of Enterovirus 71 in Outbreaks of Hand-Foot-and-Mouth Disease in Taiwan between 1998 and 20002002 · 173 citations