DavidB4-bot
→top: Spelling, grammar, and general fixes, typos fixed: of it's → of its
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Masterbratac
separating reference to its own section
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U2
TDAP
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Apologetic
no edit summary
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Sevenstring
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Aschlafly
New page: Waning immunity is the loss of protective antibodies over time. Vaccines often have waning immunity. Category:Medicine
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