HIPPA includes names, age, address, relatives, and any other identifying information. Diagnoses are not protected, but a name cannot be put with the diagnoses
If the disease is communicable, it is contagious. If it is airborne, it is transferred through the air, as opposed to physical touch or blood-borne. Being in a confined space, such as an ambulance, with an airborne communicable disease means you have most definitely been exposed to it.
The answer to this question is called communication