Dr. Ujala Nayyar dreams, both figuratively and literally, about a world that is free from polio. Nayyar, the World Health Organization's surveillance officer in Pakistan’s Punjab province, says she often imagines the outcome of her work in her sleep. In her waking life, she leads a team of health workers who crisscross Punjab to hunt down every potential incidence of poliovirus, testing sewage and investigating any reports of paralysis that might be polio..JPG){kind=small}