Sweating sickness: relative curative effect of hyperimmune serum and a precipitated immunoglobulin suspension and immunoblot identification of proposed immunodominant tick salivary gland proteins.

Although of low morbidity, sweating sickness is readily induced in calves by infestation with positive Hyalomma truncatum adult ticks. This epitheliotrophic disease has no specific cure except by the administration of hyperimmune serum obtained from animals which have recovered and are subsequently immune to the disease. Treatment with hyperimmune serum, however, has associated problems of donor availability, possible serum contamination and i.v. administration of a relatively large volume. This paper compares the treatment and cure of sweating sickness using unrefined hyperimmune serum and that of an experimental suspension. The latter proved relatively inefficient probably due to a low concentration of effective immunoglobulins. Immunoblot analyses of the sera of affected animals, using tick salivary glands as antigen during the course of the trial revealed 4 tick salivary gland proteins with molecular masses of between 27-33 kDa. These are proposed as being associated with sweating sickness immunodominance.
AuthorsA M Spickett, D B Burger, J C Crause, E M Roux, A W Neitz
JournalThe Onderstepoort journal of veterinary research (Onderstepoort J Vet Res) Vol. 58 Issue 3 Pg. 223-6 (Sep 1991) ISSN: 0030-2465 [Print] SOUTH AFRICA
PMID1923386 (Publication Type: Journal Article)
Chemical References
  • Antigens
  • Proteins
  • Animals
  • Antigens (isolation & purification)
  • Cattle
  • Cattle Diseases (therapy)
  • Immunization, Passive (methods, veterinary)
  • Immunoblotting
  • Proteins (immunology, isolation & purification)
  • Salivary Glands (chemistry, immunology)
  • Tick Toxicoses (therapy, veterinary)
  • Ticks (chemistry, immunology)

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