1887

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Volume 69, Issue 3

Antiviral, Anti-glycoprotein and Neutralizing Antibodies in Foals with Equine Infectious Anaemia Virus Free

Abstract

Summary

Equine infectious anaemia virus is related by genome sequence homology to human immunodeficiency virus, caprine arthritis-encephalitis virus and visna virus. Failure of the host to mount a strong neutralizing response detectable or to eliminate persistent infection characterizes lentivirus infections in the natural host. In this study the specificities and neutralizing activity of antibodies induced during experimental infection with equine infectious anaemia virus were investigated using antiviral ELISA, radioimmunoprecipitation and neutralization assays. ELISA antibody titres of 10 to 10 were demonstrated in samples collected 30 and 60 days after infection. Immunoprecipitation titrations demonstrated that antibody titres to the glycoproteins gp90 and gp45 were 10 to 100 times higher than titres to the internal structural protein, p24. Low levels of neutralizing antibody appeared at 23 to 46 days post-infection. The presence of low levels of neutralizing activity in the presence of high levels of anti-glycoprotein activity suggests that the major immunogenic sites on the viral surface are not sensitive to neutralization.

  • Received:
  • Accepted:
  • Published Online:
Keyword(s): equine infectious anaemia virus , lentivirus and neutralization
© Society for General Microbiology 1988
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1988-03-01
2022-08-15
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Antiviral, Anti-glycoprotein and Neutralizing Antibodies in Foals with Equine Infectious Anaemia Virus
J. Gen. Virol. 69, 667 (1988); https://doi.org/10.1099/0022-1317-69-3-667
/content/journal/jgv/10.1099/0022-1317-69-3-667
/content/journal/jgv/10.1099/0022-1317-69-3-667
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