In Istanbul, a 36-year-old woman is a one-person traveling medical unit treating some of Turkey’s most vulnerable refugees at a time when, for many people, hospitals are not an option. Some refugees do not have their papers in order. Others cannot afford care or fear getting the coronavirus at a hospital. In Istanbul, VOA’s Heather Murdock reports about one woman’s mission to do good.Camera: Heather Murdock   Contributor: Shadi Turk