Streptococcus pyogenes can be checked by which drug disk
Ans. (a) BacitracinRef.: Microbiology by Ananthanarayan and Paniker 8th ed. /201, 206-07, 2012* The various species of Streptococcus can be checked by various drug disks which is indicated as whether it is sensitive or resistant to the drug.* S. pyogenes is bacitracin sensitive.* S. agalactiae is bacitracin resistant.* S. pneumoniae is inhibited by optochin.* S. viridans is not inhibited by optochin.
Bacitracin
Polymycin
Optochin
None of the above
Streptococci