Korean J Parasitol.
2002 Dec;40(4):195-198. 10.3347/kjp.2002.40.4.195.
Cross-reactivity between sera from dogs experimentally infected with Dirofilaria immitis and crude extract of Toxocara canis
- Affiliations
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- 1Laboratory of Veterinary Internal Medicine, College of Veterinary Medicine, Chungnam National University, Daejeon, Korea.
- 2Veterinary Clinical Center, School of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan.
- KMID: 1384734
- DOI: http://doi.org/10.3347/kjp.2002.40.4.195
Abstract
- This study was performed to investigate whethere there is cross-reactivity between Dirofilaria immitis and three intestinal nematodes of dogs. In ELISA, D. immitis-infected dog sera obtained at the 4th molting stage (9-11 weeks) and microfilaremic stage (25-30 weeks) were shown to be highly reactive with crude extract of T. canis. In immunoblotting, some antigenic fractions, 44, 57, 88, 100 kDa of crude extract of T. canis, were found to be positive reaction with sera of dogs infected with D. immitis. However, little or no cross-reaction were observed between sera of D. immitis-infected dogs and crude extract antigen of T. vulpis or A. caninum. These result suggest that there are partial cross reaction between sera of D. immitis-infected dogs and the antigen of T. canis.
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