Final answer:
Beta hemolysis indicates complete lysis of blood cells and often signifies a serious bacterial infection, like those caused by Streptococcus or Listeria, which requires antibiotic treatment.
Step-by-step explanation:
Beta Hemolysis and Diagnosis
Beta hemolysis is best detected on a sheep's blood medium and refers to a clear zone around bacterial colonies growing on such a medium. This process, which is caused by the hemolysis of blood cells, indicates complete lysis of the blood in the medium. In Figure 22.7, the right plate demonstrates beta hemolysis by showing a clear zone around the hemolytic Streptococcus, distinguishing it from the non-hemolytic Staphylococcus on the left plate. Jeni's blood samples showing beta hemolysis suggest they could indicate a serious condition, often associated with pathogens such as Streptococcus or Listeria. Treatment typically involves broad-spectrum antibiotics like penicillin, depending on the specific pathogen responsible for the infection.