Dr. Michael Cooper cringes when he thinks about the time he was a family practice doctor working in Kotzebue, Alaska.
Three years ago, he worked in this remote arctic community, which is home to 3,000 people, mostly Inupiat Eskimos. Cooper occasionally saw patients complaining of a persistent cough. They may also have been experiencing night sweats or weight loss - classic signs of tuberculosis. But, he says, "TB was rarely on my list of diagnoses when I would see a patient. I hate to admit that. And as I look back now, I go through these patients some nights and I think, that patient could have had TB, and why didn't I at least do this? Why wasn't I even aware of it?"