In The US & UK, Polio Has Returned. This Is How It Proceeded

It is exhausting yet frightening to learn that polio has partially paralyzed a young man in a New York suburb. Wearying because, after monkeypox and SARS-CoV-2, it is the third highly contagious virus to unexpectedly make landfall in the US in the last three years. And alarming because polio hasn’t spread in wealthy countries for…