Zimbabwe has declared a national emergency over a cholera epidemic and the collapse of its health care system, and is seeking more help to pay for food and drugs, the state-run newspaper said Thursday. “Our central hospitals are literally not functioning,” Minister of Health David Parirenyatwa said Wednesday at a meeting of government and international aid officials, according to The Herald newspaper. The failure of the health care system is one of the most devastating effects of an economic collapse that has left Zimbabweans struggling to eat and find clean drinking water. Little help is coming from the government, which has been paralyzed since disputed March elections as President Robert Mugabe and the opposition wrangle over a power-sharing deal. The United Nations said the cholera, blamed on lack of water treatment and broken sewage pipes, has killed more than 500 people across the country since August. Matthew Cochrane, regional spokesman for the International Federation of the Red Cross and Red Crescent Societies, told The Associated Press Thursday that Zimbabwe was “absolutely” facing a cholera epidemic, and said he hoped the government's declaration of an emergency would result in international aid agencies and donors stepping up their response. “This is about supporting the people of Zimbabwe,” Cochrane said, adding that aid should include water treatment plants and more medical staff. He said the costs could climb into tens of millions of dollars. The international Red Cross shipped in more supplies Wednesday to fight cholera in Zimbabwe. The health minister declared the state of emergency at Wednesday's meeting, and appealed for money to pay for food, drugs, hospital equipment and salaries for doctors and nurses. “Our staff is demotivated and we need your support to ensure that they start coming to work and our health system is revived,” he was quoted as saying. High levels of cholera are common in the region, but Cochrane, of the Red Cross, said it was hitting a population in Zimbabwe already weakened by hunger and poverty. The death toll could be much higher than the official figures, he said, as many Zimbabweans, particularly in rural areas, were not seeking medical treatment and their deaths were not being recorded. Cochrane said Red Cross experts were in the countryside Thursday assessing the crisis. Without help, the situation could get much worse. Walter Mzembi, the deputy water minister who also attended Wednesday's meeting, said the ministry has only enough chemicals to treat water nationally for 12 more weeks.