Millions in Pakistan remain homeless and unusually vulnerable to infectious diseases as a consequence of last year’s floods. In camps, hepatitis A, not usually an urgent threat, is a growing worry.

Rukhshanda Bibi of Sukkur district, which lies on the Indus River in south-eastern Sindh, lost her mud house and cattle when last year's devastating floods tore through the area. She wasn't alone – hundreds of nearby houses washed away in the worst months of the monsoon.

Now she, like many others, is living in a relief camp and waiting for rehabilitation. Although her life savings sank in the flood, she says she feels blessed because her children remained unhurt.