[Izzy Dunne]

What you say is true; but this looks like it's intended for short-term use.

You have a suspect from a crime last night - you can do this quick test and see if he's still a suspect.

Chances are he didn't get a shot or a new disease in the meantime.

[jazusamo]

I think you’re right on this but the article mentions the lack of a data base. If a data base is finally available it seems it would be a monumental task to maintain it.

I also agree with the “journalist” remark.