This 5-year-old boy was carried to a Thai malaria clinic by his mother from deep inside Myanmar. If the mother had waited even a day longer, doctors say, the child probably would have died.
Ben de la Cruz/NPR
A doctor examines chest X-rays at a tuberculosis clinic in Gugulethu, Cape Town, South Africa in late 2007. The number of TB cases that don't respond to both first- and second-line medications is rising worldwide.
Karin Schermbrucker /AP