Flood devastation in Pakistan.

Assistance requested by The International Rescue Committee (IRC). by Dr. Nitish Priyadarshi The worst flooding in Pakistan's history has now affected more than four million people and left at least 1,600 dead, says the UN. While floods in the north-west began to recede, the vast body of water has been moving down the country into new parts of Punjab and menacing Sindh province. All wells have been contaminated and water-borne diseases are spreading, officials say. The region is midway through monsoon season and more rain is forecast. The number of affected districts in Punjab has reached seven, while 350,000 people have been moved from neighbouring Sindh province, most of which is on high alert, the United Nations said. In Punjab, known as Pakistan's "breadbasket" for its rich agriculture, more than 1,300 villages have been affected and at least 25,000 homes destroyed, said disaster relief officials in the province. In the worst-affected areas, small villages have bee...