DavidB4-bot
→top: HTTP --> HTTPS #3, replaced: http://www.cdc.gov → https://www.cdc.gov
19:38
+1
→top: Spelling, grammar, and general fixes
14:16
+6
Brian
Added source information for text
02:19
+118
Aschlafly
New page: Prevalence in medicine is the number of disease cases (new and existing) within a population over a given time period.
01:39
+122