Workers in protective suits circled collapsed communities in trucks on Monday, spraying disinfectant on rubble from last month's massive earthquake as part of a government campaign to prevent disease outbreaks among the 5 million left homeless. Providing safe food, drinking water and temporary shelters was a priority following the May 12 earthquake that killed nearly 70,000 people, the Health Ministry said. Bodies discovered in the rubble were being disinfected, ministry spokesman Mao Qun'an said in an interview posted on the central government's Web site.