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Journal of clinical microbiology1992; 30(2); 485-491; doi: 10.1128/jcm.30.2.485-491.1992

Evidence for two serotype G3 subtypes among equine rotaviruses.

Abstract: Ten cultivable equine rotavirus isolates, two of North American, six of British, and two of Irish origin, were compared with standard rotavirus strains and with each other by cross neutralization, neutralization with a panel of monoclonal antibodies (MAbs), hybridization to a simian rotavirus (SA-11) VP7 gene probe, and reaction with rotavirus subgrouping and serotyping MAbs in enzyme-linked immunosorbent assays. Six isolates, two of which had previously been serotyped as G3 by other workers, were found to be serotype G3; one was confirmed to be G5, and three were not related to serotypes G1 to G10. The serotype G3 strains were divisible into two subtypes, G3A and G3B, on the basis of cross neutralization. This division was also apparent in reactions with neutralizing VP7-specific MAbs and in the liquid hybridization assay. Two of the isolates were not bound by either subgroup MAb, six were bound by both subgroup I and II MAbs, and two were bound by only the subgroup I MAb. The assays used in this characterization provide a range of epidemiological information for use in future field investigations.
Publication Date: 1992-02-01 PubMed ID: 1371520PubMed Central: PMC265082DOI: 10.1128/jcm.30.2.485-491.1992Google Scholar: Lookup
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  • Journal Article
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  • Non-U.S. Gov't

Summary

This research summary has been generated with artificial intelligence and may contain errors and omissions. Refer to the original study to confirm details provided. Submit correction.

This research focused on studying differences among ten isolates of equine rotavirus from North America, Britain and Ireland, using tests such as cross neutralization and hybridization assays. Their findings suggest there may be two subtypes of serotype G3 in equine rotaviruses, named G3A and G3B, which could have potential significance in field investigations and addressing equine rotavirus epidemiology.

Initiation of the study

  • The study began with the collection and culture of ten isolable equine rotavirus samples from different regions: two from North America, six from Britain, and two from Ireland.
  • These samples were compared with established rotavirus strains and each other using a number of assays.

Methods used in the study

  • A range of tests was performed to classify and compare the virus samples, including cross neutralization (to see how the viruses react to antibodies), hybridization to a simian rotavirus (SA-11) VP7 gene probe (to compare genetic similarities), and the use of enzyme-linked immunosorbent assays with serotyping and subgrouping monoclonal antibodies (to determine the rotavirus subgroup).

Key findings and interpretation

  • Out of the 10 isolates, six were found to be of serotype G3, one was confirmed to be G5, and three did not relate to serotypes G1 to G10.
  • The G3 strains were further differentiated into two subtypes, G3A and G3B, using cross neutralization.
  • The existence of two subtypes was confirmed by reactions with neutralizing VP7-specific monoclonal antibodies and in a liquid hybridization assay.

Subgroup Binding Differences

  • Two of the isolates could not bind with either subgroup monoclonal antibody, six bound with both subgroup I and II monoclonal antibodies, and two bound with only the subgroup I monoclonal antibody.

Implications of the findings

  • These tests for characterizing rotaviruses provide valuable epidemiological information, adding to the understanding of equine rotavirus diversity.
  • The findings towards the existence of two subtypes within serotype G3 could direct future field investigations and help in understanding the disease epidemiology and devising more effective control strategies.

Cite This Article

APA
Browning GF, Chalmers RM, Fitzgerald TA, Snodgrass DR. (1992). Evidence for two serotype G3 subtypes among equine rotaviruses. J Clin Microbiol, 30(2), 485-491. https://doi.org/10.1128/jcm.30.2.485-491.1992

Publication

ISSN: 0095-1137
NlmUniqueID: 7505564
Country: United States
Language: English
Volume: 30
Issue: 2
Pages: 485-491

Researcher Affiliations

Browning, G F
  • Moredun Research Institute, Edinburgh, Scotland, United Kingdom.
Chalmers, R M
    Fitzgerald, T A
      Snodgrass, D R

        MeSH Terms

        • Animals
        • Antibodies, Monoclonal
        • Antigens, Viral
        • Capsid / immunology
        • Capsid Proteins
        • Enzyme-Linked Immunosorbent Assay
        • Epidemiologic Methods
        • Epitopes
        • Horse Diseases / epidemiology
        • Horse Diseases / microbiology
        • Horses
        • Neutralization Tests
        • Rotavirus / classification
        • Rotavirus / immunology
        • Rotavirus / isolation & purification
        • Rotavirus Infections / epidemiology
        • Rotavirus Infections / microbiology
        • Rotavirus Infections / veterinary
        • Serotyping

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        Citations

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