DavidB4-bot
→top: HTTP --> HTTPS #3, replaced: http://www.cdc.gov → https://www.cdc.gov
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→top: clean up & uniformity
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Jpatt
Reverted edits by BlakeJ (talk) to last revision by CPalmer
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BlakeJ
no edit summary
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CPalmer
subcat
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Aschlafly
undeadend
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Brian
Added source information for text
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New page: A combination vaccine is two or more vaccines administered at once in order to reduce the number of shots given. For example, the MMR (measles, mumps, rubella) vaccine is a combination vac...
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