Resistance

RESISTANCE

  • It is a delicate organism easily destroyed by heat (54° C for 30 minutes).
  • It can survive in dust for several weeks, if protected from sunlight.
  • It is rapidly inactivated by antiseptics.
  • It is more resistant to crystal violet and susceptible to sulphonamides and other antibiotics.
  • Sensitivity to bacitracin is employed as a convenient method for differentiating S. pyogenes from other hemolytic streptococci.
Last modified: Monday, 4 June 2012, 4:10 AM