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The American journal of tropical medicine and hygiene1975; 24(1); 127-130; doi: 10.4269/ajtmh.1975.24.127

A microprecipitation test for rapid detection and identification of Venezuelan, eastern and western equine encephalomyelitis viruses.

Abstract: The development of a new diagnostic procedure for the identification of Venezvelan, eastern and western equine encephalomyelitis (VEE, EEE, WEE) viruses is described. The procedure utilizes virus precipitation with reference fluorescein-conjugated gamma globulin, followed by cellulose acetate electrophoresis. Clinical specimens containing varying concentrations of virus yielded, in primary duck embryo cell culture, sufficient virus for detection within 22 to 44 hours. Identification of VEE, EEE and WEE virus in specimens was accomplished by microprecipitation within this time. In contrast to conventional identification methods, our procedure eliminates the cost of utilizing laboratory animals and considerably reduces the time required for virus identification.
Publication Date: 1975-01-01 PubMed ID: 46134DOI: 10.4269/ajtmh.1975.24.127Google Scholar: Lookup
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  • Journal Article

Summary

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This research article describes the creation of a new, more cost-effective and time-efficient diagnostic test to identify three types of equine encephalomyelitis viruses.

Overview of the New Diagnostic Procedure

  • The newly developed diagnostic procedure is intended to identify Venezuelan, eastern, and western equine encephalomyelitis viruses (VEE, EEE, WEE).
  • This procedure utilizes a process involving virus precipitation with reference fluorescein-conjugated gamma globulin. This is then followed by cellulose acetate electrophoresis.

Procedure Assessment and Results

  • In trials involving clinical specimens that contained various concentrations of the viruses, the new procedure was efficient and yielded enough of the virus for detection within a time frame between 22 to 44 hours.
  • The new method was able to correctly identify and discern between VEE, EEE, and WEE viruses in specimens through a microprecipitation process within this stated time frame.

Comparison to Conventional Identification Methods

  • Compared to traditional identification methods, the newly developed procedure has several notable advantages.
  • Firstly, it eliminates the cost associated with using laboratory animals in the testing process. This is not only a cost-related benefit but could also have an ethical impact, reducing the need for animal testing.
  • Additionally, the new method considerably reduces the time required for virus identification. By speeding up the diagnosis process, more infected individuals or specimens could be identified and treated in a timelier manner, effectively improving patient outcomes.

Cite This Article

APA
Levitt NH, Miller HV, Pedersen CE, Eddy GA. (1975). A microprecipitation test for rapid detection and identification of Venezuelan, eastern and western equine encephalomyelitis viruses. Am J Trop Med Hyg, 24(1), 127-130. https://doi.org/10.4269/ajtmh.1975.24.127

Publication

ISSN: 0002-9637
NlmUniqueID: 0370507
Country: United States
Language: English
Volume: 24
Issue: 1
Pages: 127-130

Researcher Affiliations

Levitt, N H
    Miller, H V
      Pedersen, C E
        Eddy, G A

          MeSH Terms

          • Animals
          • Antibodies, Viral
          • Antigens, Viral
          • Cells, Cultured
          • Chemical Precipitation / methods
          • Complement Fixation Tests
          • Ducks
          • Electrophoresis
          • Embryo, Mammalian
          • Embryo, Nonmammalian
          • Encephalitis Virus, Venezuelan Equine / isolation & purification
          • Encephalitis Virus, Western Equine / isolation & purification
          • Encephalitis Viruses / isolation & purification
          • Encephalomyelitis, Equine / microbiology
          • Fluoresceins
          • Hemagglutination Inhibition Tests
          • Immune Sera
          • Rabbits / immunology
          • Time Factors
          • Viral Plaque Assay
          • Virus Cultivation
          • gamma-Globulins

          Citations

          This article has been cited 1 times.
          1. Levitt NH, Miller HV, Eddy GA. Solid-phase radioimmunossay for rapid detection and identification of western equine encephalomyelitis virus. J Clin Microbiol 1976 Oct;4(4):382-3.
            doi: 10.1128/jcm.4.4.382-383.1976pubmed: 824305google scholar: lookup