Problem: Which of the following statements is correct with reference to hand washing and hand rubbing:
a. If you suspect contamination with non-enveloped viruses you can use both hand washing and hand rubbing in the same instance of hand hygiene
b. Hand washing usually takes 15-20 seconds for the entire procedure
c. Hand rubbing usually takes 60 seconds for the entire procedure
d. You should never combine hand washing and hand rubbing in the same instance of performing hand hygiene