Which of the following is a test used to differentiate between Streptococcus pneumoniae and viridans streptococci?
(a) Bacitracin susceptibility test
(b) Optochin susceptibility test
(c) Novobiocin susceptibility test
(d) Vancomycin susceptibility test
Gauri Answered question August 17, 2024
(b) Optochin susceptibility test
The Optochin susceptibility test is used to differentiate Streptococcus pneumoniae (which is optochin-sensitive) from viridans streptococci (which are optochin-resistant).
Gauri Answered question August 17, 2024