Development of a Recombinant Epsilon Toxoid Vaccine against Enterotoxemia and Its Use as a Combination Vaccine with Live Attenuated Sheep Pox Virus against Enterotoxemia and Sheep Pox

Author:

Chandran Dev12,Naidu Sureddi Satyam12,Sugumar Parthasarathy12,Rani Gudavalli Sudha12,Vijayan Shahana Pallichera12,Mathur Deepika12,Garg Lalit C.12,Srinivasan Villuppanoor Alwar12

Affiliation:

1. Indian Immunologicals Limited, Rakshapuram, Gachibowli, Hyderabad, India

2. Gene Regulation Laboratory, National Institute of Immunology, Aruna Asaf Ali Marg, New Delhi, India

Abstract

ABSTRACT Sheep pox and enterotoxemia are important diseases of sheep, and these diseases cause severe economic losses to sheep farmers. The present study was undertaken to evaluate the potential of formaldehyde-inactivated recombinant epsilon toxin as a vaccine candidate. The potency of the recombinant epsilon toxoid with aluminum hydroxide as an adjuvant in sheep was determined. Vaccinated sheep were protected against enterotoxemia, with potency values of >5 IU being protective. Further, the use of this construct in a combination vaccine against sheep pox resulted in the sheep being protected against both sheep pox and enterotoxemia.

Publisher

American Society for Microbiology

Subject

Microbiology (medical),Clinical Biochemistry,Immunology,Immunology and Allergy

Reference27 articles.

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4. Batty, I., and A. T. Glenny. 1947. Titration of Clostridium welchii epsilon-toxin and antitoxin. Br. J. Exp. Pathol.28:110-126.

5. Bhown, A. S., and A. F. S. A. Habeeb. 1977. Structural studies on epsilon-prototoxin of Clostridium perfringens type D. Localization of the site of tryptic scission necessary for activation to epsilon-toxin. Biochem. Biophys. Res. Commun.78:889-896.

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