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Diagn Microbiol Infect Dis. 1990 Jan-Feb;13(1):63-6.

Optochin-resistant variants of Streptococcus pneumoniae.

Author information

1
Servicio de Bacteriologia, Instituto de Salud Carlos III, Majadahonda, Madrid, Spain.

Abstract

Ten Streptococcus pneumoniae clinical isolates, possessing physiologically typical pneumococcal characteristics, showed optochin-susceptible and optochin-resistant colonies around the optochin disk, when tested for optochin susceptibility. Equivocal optochin disk test results should be confirmed by bile solubility, agglutination tests, or both.

PMID:
2331852
DOI:
10.1016/0732-8893(90)90056-2
[Indexed for MEDLINE]

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