The following that is not an example of example indirect contact transmission is (A). You touched the patient's doorknob when leaving and didn't wash your hands.
Indirect contact transmission is when there is no direct human contact, but there is contact between their things or using the same objects. There can be a vector between them, like animals, or objects.
Here the door knob is touched by both the patient and the doctor, but there is no contact between them.
Thus, option (A) is correct for indirect contact transmission.
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