Until we can make the whole world the "herd", lapses in vaccination and travel will poke holes in the effectiveness. This is a threat to those who can't be vaccinated.
So, if you choose not to vaccinate, please don't travel. I'd prefer if you'd voluntarily lock your self away in total isolation.
http://annals.org/aim/article/2626466/mi...arting-u-s
So, if you choose not to vaccinate, please don't travel. I'd prefer if you'd voluntarily lock your self away in total isolation.
http://annals.org/aim/article/2626466/mi...arting-u-s
Being told you're delusional does not necessarily mean you're mental.