volyund t1_j51lfmi wrote
Reply to comment by inna_hey in Is there any difference in efficacy when a vaccine is administered somewhere other than the upper arm (e.g. on the foot)? by MercurioLeCher
Nope, the needle they use is thin enough that if there wasn't an inflammation, any pain would be minimal (think how long the puncture site hurts after a blood draw.
What hurts is your immune system reaction to the vaccine or it's components (adjuvants) itself, because that's necessary for immunizing against the antigen.
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