DavidB4-bot
→top: HTTP --> HTTPS #3, replaced: http://www.cdc.gov → https://www.cdc.gov
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→References: clean up & uniformity
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Suzismoothmoves
no edit summary
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Brian
Added source information for text
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Colest
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Aschlafly
New page: Diphtheria is a bacterial disease marked by the formation of a false membrane, especially in the throat, which can be fatal.
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