3. Instructions for optimal hand hygiene procedures. These
mainly focused on the timing, the technique and
completeness of hand rubbing (e.g. rubbing of the hand
back, rubbing the palm of the hand, wrists, finger tops
and thumbs);
4. Performance feedback on personal hand hygiene
practices. Completeness of hand rubbing was assessed
by UV-light after rubbing hands with fluorescent hand
rub solution. Only sufficiently rubbed parts will glow in
UV-light; non-disinfected parts remain dark;