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  • Title: [Identification of Corynebacterium diphtheria biovar belfanti among circulating C. diphtheriae strains in Ukraine].
    Author: Demikhovskaia EV, Glushkevich TG, Zherebko NN.
    Journal: Zh Mikrobiol Epidemiol Immunobiol; 2001; (2):83-5. PubMed ID: 11548269.
    Abstract:
    The biochemical test of the reduction of nitrates to nitrites made it possible to identify 5.2% of strains belonging to biovar belfanti among 135 C. diphtheriae strains, initially classified within biovar mitis. Out of 7 identified C. diphtheriae belfanti strains, 2 toxigenic strains were isolated from multiple foci diphtheria. According to the results of the polymerase chain reaction, 1 out of 5 non-toxigenic strains had tox gene. All C. diphtheriae belfanti strains were found to have pronounced capacity for adhesion to sheep and human red blood cells. At the stage of the extinction of diphtheria epidemic the practical identification of C. diphtheriae belfanti strains is necessary, as increased adhesion in combination with toxigenic properties may probably promote for bacteria of this biovar to take the leading role at the period of sporadic morbidity.
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