'''Diphtheria''' is a [[bacteria]]l [[disease]] marked by the formation of a false membrane, especially in the throat, which can be fatal.<ref>http://www.cdc.gov/vaccines/about/terms/glossary.htm#d</ref>
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'''Diphtheria''' is a [[bacteria]]l [[disease]] marked by the formation of a false membrane, especially in the throat, which can be fatal.<ref>https://www.cdc.gov/vaccines/about/terms/glossary.htm#d</ref>
While once widespread, the disease has been pretty much eradicated in developed countries thanks to a vaccine.
While once widespread, the disease has been pretty much eradicated in developed countries thanks to a vaccine.