Medical Emergency Relief International (Merlin) responded immediately to the floods in Pakistan and has scaled up existing operations in northern Pakistan where the worst flood in decades has caused widespread devastation. Merlin's team of 600, including 300 medical experts responded immediately.4 million people have been affected and 1,500 people have died. Merlin teams working in the worst affected areas have treated over 4,000 patients in the last two days alone.Merlin has set up 28 health clinics and deployed 18 mobile teams. Merlin medics are running 24-hour clinics in Jalozai camp, home to over 100,000 vulnerable people, in response to a significant spike in diarrhea and other waterborne disease.