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Infection and immunity1974; 10(3); 667-668; doi: 10.1128/iai.10.3.667-668.1974

Equine infectious anemia virus from infected horse serum.

Abstract: Equine infectious anemia virus was purified from infected horse serum samples. Electron microscope observation on negatively stained preparations of purified virus showed roughly spherical particles sized between 100 and 200 nm in diameter. In disrupted particles, an envelope was visible but no internal structure could be resolved. Since the purified virus fraction had a strong antigenic activity to antiserum in immunodiffusion reaction, these particles are thought to be the causative virus of equine infectious anemia.
Publication Date: 1974-09-01 PubMed ID: 4372175PubMed Central: PMC423001DOI: 10.1128/iai.10.3.667-668.1974Google Scholar: Lookup
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  • Journal Article

Summary

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The researchers in this study managed to isolate and purify the virus responsible for causing equine infectious anemia from the serum of infected horses. They then examined these viral particles under an electron microscope and found key traits of their physical structure.

Methodology

  • The research began by sourcing infected horse serum samples. These samples present a rich source of the equine infectious anemia virus.
  • The team then undertook the laborious process of purifying the virus from these samples. This purification process is important to separate the virus from any other potentially contaminating substances present in the serum.

Electron Microscope Observation

  • After obtaining a purified sample of the virus, the researchers then used the powerful observing power of an electron microscope to get a detailed look at the virus’s structure.
  • The virus particles were found to be somewhat spherical in shape and measuring 100 to 200 nm in diameter. This is a typical size for many viral particles.
  • Upon disrupting the particles, an outer envelope, a common trait among some types of virus, was visible. However, it was hard to make out any detailed internal structure of the virus.

Antigenic Activity

  • They also tested the antigenic activity of the purified virus fraction by using an immunodiffusion reaction. This involves introducing antigens into an organism’s body to stimulate the production of antibodies.
  • The strong antigenic response is evidence that the purified particles are indeed the virus causing equine infectious anemia, as the body recognizes it as a threat and produces antibodies to fight it.

The results obtained from this study contribute to the advancement of knowledge regarding Equine infectious anemia virus. A meticulously detailed understanding of its physical characteristics and behaviour enables better diagnostics, prevention measures, and potentially the development of effective treatments for this disease.

Cite This Article

APA
Nakajima H, Yoshino T, Ushimi C. (1974). Equine infectious anemia virus from infected horse serum. Infect Immun, 10(3), 667-668. https://doi.org/10.1128/iai.10.3.667-668.1974

Publication

ISSN: 0019-9567
NlmUniqueID: 0246127
Country: United States
Language: English
Volume: 10
Issue: 3
Pages: 667-668

Researcher Affiliations

Nakajima, H
    Yoshino, T
      Ushimi, C

        MeSH Terms

        • Animals
        • Antigens, Viral
        • Equine Infectious Anemia / immunology
        • Horses
        • Immune Sera
        • Immunodiffusion
        • Infectious Anemia Virus, Equine / immunology
        • Infectious Anemia Virus, Equine / isolation & purification
        • Infectious Anemia Virus, Equine / ultrastructure
        • Leukocytes / microbiology
        • Microscopy, Electron

        References

        This article includes 7 references
        1. Nakajima H, Tajima M, Tanaka S, Ushimi C. Physicochemical studies of equine infectionus anemia virus. 3. Purification and electron microscopic observation of the virus.. Arch Gesamte Virusforsch 1969;28(3):348-60.
          pubmed: 4195623doi: 10.1007/BF01240949google scholar: lookup
        2. Moore RW. The immunologic properties associated with equine infectious anemia: recent findings.. J Am Vet Med Assoc 1969 Jul 15;155(2):331-5.
          pubmed: 4978805
        3. Nakajima H, Ushimi C. Immunodiffusion studies of purified equine infectious anemia virus.. Infect Immun 1971 Mar;3(3):373-7.
          pubmed: 16557982doi: 10.1128/iai.3.3.373-377.1971google scholar: lookup
        4. Nakajima H, Ushimi C, Fukunaga Y, Hirasawa K. Preparation of equine infectious anemia virus antigen for immunodiffusion test.. Arch Gesamte Virusforsch 1973;42(4):339-45.
          pubmed: 4358258doi: 10.1007/BF01250714google scholar: lookup
        5. Nakajima H, Ushimi C, Obara J. Physicochemical studies on equine infectious anemia virus. Examination of purification methods.. Natl Inst Anim Health Q (Tokyo) 1967 Spring;7(1):21-7.
          pubmed: 4293212
        6. Nakajima H, Tanaka S, Ushimi C. Fractionation of equine infectious anemia virus by diethylaminoethyl cellulose chromatography and sucrose density gradient centrifugation.. Natl Inst Anim Health Q (Tokyo) 1968 Summer;8(2):57-63.
          pubmed: 4305804
        7. REAGAN RL, LILLIE MG, HICKMAN JW, BRUECKNER AL. Studies of the virus of equine infectious anemia.. Am J Vet Res 1950 Apr;11(39):157-8.
          pubmed: 15410969

        Citations

        This article has been cited 2 times.
        1. Matheka HD, Coggins L, Shively JN, Norcross NL. Purification and characterization of equine infectious anemia virus. Arch Virol 1976;51(1-2):107-14.
          doi: 10.1007/BF01317839pubmed: 183628google scholar: lookup
        2. Charman HP, Bladen S, Gilden RV, Coggins L. Equine infectious anemia virus: evidence favoring classification as a retravirus. J Virol 1976 Sep;19(3):1073-9.
          doi: 10.1128/JVI.19.3.1073-1079.1976pubmed: 61283google scholar: lookup