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PubMed1975

Titration of a brucella protein allergen in sheep sensitized with Brucella melitensis.

A protein allergen extracted from a rough strain of B. melitensis was titrated in sheep sensitized by vaccination with the attenuated B. melitensis strain Rev. I. Single doses of allergen were given per animal by the intradermal or palpebral routes. Doses over a 100-fold range produced delayed hypersensitivity reactions of similar magnitude by both routes. The most suitable method for application in the field was a dose of 50 mug given by the palpebral route (0.5 ml subcutaneously in the upper eyelid) with readings taken 48 hours after inoculation. Sheep vaccinated with H 38 adjuvant vaccine for 6 to 9 months showed positive reaction to the allergic test, whereas non-vaccinated non-infected sheep showed no reactions. No increase in agglutinations titers following allergic test was observed in either Rev. I or H 38 vaccinated sheep.

Allergens↗
PubMed1986

[Indices of phagocytosis of S and R forms of Brucella in patients with acute and chronic brucellosis caused by Brucella abortus].

The characteristics of phagocytosis (phagocytic activity and phagocytic index) in patients with acute and chronic brucellosis have been studied with B. abortus S- and R-forms used as its objects. The study has revealed that higher characteristics of phagocytosis with respect to B. abortus S-forms are observed in patients with acute brucellosis, whereas in patients with chronic brucellosis taking a benign course phagocytosis is more intensive in respect of R-forms. In patients with frequent exacerbations of chronic brucellosis differences in the characteristics of phagocytosis with respect to B. abortus S- and R-forms are not statistically valid.

Acute Disease↗