The emergency ward at the main government hospital in Sehwan, a small town in southern Pakistan, is overwhelmed.

On a recent visit, a reporter witnessed hundreds of people crammed into rooms and corridors, desperately seeking treatment for malaria and other illnesses that are spreading fast after the country¡¯s worst floods in decades.

Amid the crush, Naveed Ahmed, a young doctor in the emergency response department of the Abdullah Shah Institute of Health Sciences, is surrounded by five or six people trying to get his attention.