Report of the Australian Rotavirus Surveillance Program, 2000/2001

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P Masendycz1, N Bogdanovic-Sakran, C Kirkwood

  • 1National Rotavirus Reference Centre, Murdoch Children's Research Institute, Royal Children's Hospital, Parkville, Victoria. masendyp@cryptic.rch.unimelb.edu.au

Communicable Diseases Intelligence Quarterly Report
|October 13, 2001
PubMed

Insights

Rotavirus surveillance in Australia identified G1 strains as most common in children hospitalized with diarrhea. Other prevalent serotypes included G9, G2, and G4, impacting rotavirus vaccine development strategies.

Area of Science:

  • Virology
  • Epidemiology
  • Public Health

Background:

  • Rotavirus is a leading cause of severe diarrheal disease in infants and young children globally.
  • Rotavirus vaccination strategies aim to reduce disease burden, but require knowledge of circulating strains.

Purpose of the Study:

  • To determine the prevalent rotavirus serotypes causing acute diarrhea hospitalizations in Australian children.
  • To inform rotavirus vaccine development and public health strategies.

Main Methods:

  • Surveillance of rotavirus specimens from hospitalized children across Australia (June 2000 - May 2001).
  • Utilized a combination of monoclonal antibody immunoassay, reverse transcription-PCR, and Northern hybridization for serotyping.
  • Analyzed 1108 rotavirus-positive specimens.

Main Results:

  • Serotype G1 rotavirus was the most prevalent overall (49.5%), detected in all participating centers.
  • Serotype G9 was the second most common (18.1%), followed by G2 (12.5%) and G4 (9.7%).
  • Serotype G4 showed a re-emergence during the study period.

Conclusions:

  • The study highlights the predominance of G1 rotavirus and the significant circulation of G9, G2, and G4 serotypes in Australia.
  • Findings suggest that current and future rotavirus vaccines may need to provide broad protection beyond G1-G4 to be maximally effective.

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