Good news from PLoS One, the Baltimore Sun reports -- cases of tuberculosis are falling because of effective prevention measures, but the risk of drug-resistant TB is going up.
Tuberculosis isn’t as common as, say, pneumonia, but it’s a brutal disease that affects the lungs and may even harm the brain, kidneys and spine. It tends to attack those with weakened immune systems: drug abusers, migrant farm workers, the homeless, the elderly.

