A) Use of gloves, disinfecting gloves between handling cultures, handling cultures only in a biosafety cabinet, and using lab materials for only 2-3 cultures prior to disposal or autoclaving
B) Use of gloves, disinfecting gloves between handling cultures, handling cultures on an open benchtop, use lab materials for only one culture before disposal or autoclaving
C) Use of gloves, disinfecting gloves between handling cultures, handling cultures only in a biosafety cabinet, use lab materials for only one culture before disposal or autoclaving