55 cases in 30 yrs: From 1980 to 2010, there were 55 cases of diphtheria reported to the cdc.
Answered 1/14/2012
6.1k views
Fortunately-not very: There have been only 3 cases in the us between 2000 and 2007. Here's more information for you: http://en.Wikipedia.Org/wiki/diphtheria.
Answered 9/28/2016
5.5k views
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