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Vaccination trials against Taiwan Taenia eggs in pigs injected with frozen oncospheres of Taiwan Taenia, Korea Taenia, T. saginata or T. solium

Published online by Cambridge University Press:  01 June 1997

P. C. FAN ,
W. C. CHUNG ,
K. S. EOM  and
A. ITO
P. C. FAN
Affiliation:
Department of Parasitology, School of Medicine, National Yangming University, Taipei, Taiwan, Republic of China
W. C. CHUNG
Affiliation:
Department of Parasitology, Taipei Medical College, Taipei, Taiwan, Republic of China
K. S. EOM
Affiliation:
Department of Parasitology, College of Medicine, Chungbuk National University, Chongju, Korea
A. ITO
Affiliation:
Department of Parasitology, Gifu University School of Medicine, Gifu, Japan
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Abstract

When Small-Ear-Miniature pigs subcutaneously injected once with frozen oncospheres of Taiwan Taenia, Korea Taenia, T. saginata or T. solium emulsified with Freund's complete adjuvant (1·6 × 104/0·4 ml) were challenged orally with 1·6 × 104 viable eggs of Taiwan Taenia 41 days later, they all showed strong resistance compared with pigs vaccinated with T. solium. Most pigs (5/8) of the former 3 groups harboured no cysticerci. The number of cysticerci was 5·5±9·1 (mean±S.D.), whereas pigs of the T. solium group and control group harboured 160±30·1 and 661±637·2 cysticerci, respectively. All cysticerci recovered from vaccinated pigs and most cysticerci in control pigs were degenerated or calcified at 36–55 days after oral egg challenge. These results strongly suggest that oncospheres of Taiwan Taenia and Korea Taenia are very similar to T. saginata in their immunogenicity in pigs.

Keywords

vaccinationSEM pigoncosphereTaiwan TaeniaKorea TaeniaTaenia saginataTaenia solium
Type
Research Article
Information
Parasitology , Volume 114 , Issue 6 , June 1997 , pp. 541 - 544
Copyright
1997 Cambridge University Press

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