MISSION, Kan. (AP) — Treating the sick and dying isn't even the toughest part for nurse Amelia Montgomery as the coronavirus surges in her corner of red America.

It's dealing with patients and relatives who don't believe the virus is real, refuse to wear masks and demand treatments like hydroxychloroquine, which President Donald Trump has championed even though experts say it is not effective against the scourge that has killed over 210,000 in the U.S.

Montgomery finds herself, like so many other doctors and nurses, in a world where the politics of the crisis are complicating treatment efforts...