in the case of HIV it works, because it is not infectious in normal working conditions,,,there has th be a real exchange of body fluids, such as unprotected sex or a needle ,,,
Hep C is the real danger,,,,,you can become infected from drinking from a cup with infected saliva on it,,,,thats why restaurants MUST have a very hot water automatic dishwasher...like 170 degrees F.....
or you could just hang your bird out in today'a heat! :)