The lack of value seem in your response is the consideration of scarlette fever, now commonly referred to as strep throat. There is no vaccination for it but it's just as prevalent today as it was back then, no amount of hygiene is going to save you from getting it....only the fact that the bacterium was isolated at one time to determine it's structure and an dose of antibiotics is going to help that bit of an argument. You can never stand to be wrong about anything, that's hardly my problem.