Herd immunity of vaccination fraying as anti-vaxxer movement persists: “Measles is the most contagious of the vaccine-preventable diseases, so it’s always the first to come back when you see a drop in herd immunity”

Herd immunity of vaccination fraying as anti-vaxxer movement persists: “Measles is the most contagious of the vaccine-preventable diseases, so it’s always the first to come back when you see a drop in herd immunity”
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