KAMPALA, Uganda — Earlier this month, 1,000 people from around the world gathered at a World Health Organization-sponsored forum here to discuss what’s increasingly being seen as a global crisis: the acute shortage of health care workers. The WHO estimates that more than four million health care workers are needed in the 57 countries it defines as grossly understaffed (fewer than 2.3 doctors, nurses and midwives per 100,000 people). Thirty-six of the 57 worst-hit countries are in Africa (Malawi has around 265 doctors for 12 million people; Zambia has about 650 for the same population). But when it comes to […]