PPIB and hepatitis A virus infection: The frequency of the practices was reported as; hepatitis B screening (65.4%), hepatitis B vaccination (68.4%), vaccination ≥ 3 doses (52.6%), post-hepatitis B vaccination antibody testing (8.7%), changed gloves per client (67.6%), never recapped needles (28.4%), never splashed blood on the body (52.9%) and sometimes needle stick injuries in the past (50.6%).