Question

Which hemolysis test (alpha, beta, gamma) is S. saprophyticus positive for?

1) Alpha hemolysis
2) Beta hemolysis
3) Gamma hemolysis

Answer 1

Staphylococcus saprophyticus exhibits gamma hemolysis, where there is no lysis of red blood cells and no clear zone on blood agar.

Step-by-step explanation:

Staphylococcus saprophyticus is known for exhibiting gamma hemolysis. Gamma hemolysis, also referred to as y-hemolysis, is characterized by a lack of hemolysis, meaning the bacteria do not lyse red blood cells and therefore do not cause a clear zone of hemolysis on blood agar. This can be contrasted with beta hemolysis, where complete lysis of red blood cells around the bacteria colonies creates a clear zone, and with alpha hemolysis, where there is partial lysis and a greenish or brownish discoloration due to the reduction of hemoglobin to methemoglobin surrounding the colonies.