Isolated bacterial colonies from the agar plates were identified by conventional techniques (morphology, haemolysis, lactose fermentation, Gram-staining and microscopy) using a study guide on diagnostic bacteriology
.  Descriptive statistics and non-parametric analysis using Stata 11 (StataCorp., USA) were employed to compare the differences between hand-washing techniques and between hospitals.
L-J culture medium, phosphate buffer solution (PBS, pH = 6.8), digestion solution, and other related reagents were prepared according to the "Laboratory Science Procedure of Diagnostic Bacteriology
in Tuberculosis." All procedures were strictly in compliance with the BACTEC-MGIT320 liquid culture method.
Her research interests include antimicrobial resistance mechanisms and diagnostic bacteriology