How does that breath test work in practice? I specifically wonder about the hygiene of the mouthpiece if there is one. Is there a disposable mouthpiece included when you use the Health Monitor?
There would have to be. No one would use something that someone else just had their mouth on. Plus you just need someone to contract a disease from it, and you have a lawsuit.
As I know, this diseases (cancer and diabetes) are not contagious. And other diseases can be infected in other places - for example, in restaurants or metro. Though I think methods of protection should be provided.
Just because you are testing for cancer and diabetes does not mean you cannot contract a flu or herpes through the mouthpiece. Aside from that, I would simply not use a device that someone else put his lips on. The idea revolts me.
You can of course make tests for flu and herpes, but i don't think it will be very popular, first of all because you can easily see if you have either of them unlike more serious diseases like diabetes, cancer, etc. Second, the sanitary aspect would be too demanding here and the price might be higher accordingly, hence I don't think it would be worth it.
do you actually have to place your mouth and touch a mouthpiece? can't you just blow at a sensor?