10 Early 2000s Podcast. In our time. Immunisations. 60-90% = Herd immunity. quote: "Anti vaxxers" keep government in check on dangerous vaccines (m.youtube.com) posted 2 years ago by alltheleavesarebrown 2 years ago by alltheleavesarebrown +10 / -0 0 comments share 0 comments share save hide report block hide replies