1. Bacteria was introduced into his bloodstream through an unsterile needle.

2. Unsterile equipment can transmit such lethal diseases as hepatitis, AIDS, tuberculosis, and tetanus.

3. In travellers, HBV can be transmitted through sexual contact, use of unsterile equipment during medical or dental care, tattooing, body piercing, acupuncture, receipt of blood transfusions or injection drug use(1,6,37,38).

4. An accordion folded sleeve (36) is positioned on the receptacle for being extended over the trailing cable (22) of the video camera to maintain the sterile environment within the operating room even though the camera and trailing cable are unsterile.