r/vaxxhappened is a subreddit with 345k members. The community frequently discusses hate, worst, vaccines, rfk jr, and vaccine, and the most common flair used is mod approved™.
The original pro vaccine subreddit shining a light on Anti-Vaxxers on all forms of media. Post screenshots, articles and anecdotes.
Anti-Vaxxers: Check out Rule Two
Popular Topics in r/vaxxhappened
#1
Hate
72 posts
#2
Worst
59 posts
#3
Vaccines
54 posts
#4
Rfk Jr
54 posts
#5
Vaccine
47 posts
#6
Measles
45 posts
#7
Children
34 posts
#8
Autism
28 posts
#9
Cdc
28 posts
#10
Vaccination
24 posts
Flair Used in r/vaxxhappened
#1
Mod Approved™
: "Interactions with antivaxxers"
4 posts
Member Growth in r/vaxxhappened
Yearly
-1369 members(-0.4%)
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Last updated: July 12, 2026