A、Opening hand centers. B、Having ambulance on standby. C、Providing boiled water. D、Setting up living areas. A新闻提到，卫生专家们正在加强公共厕所的

Government and health officials are trying to help thousands of sick people there who have all been diagnosed with cholera. It’s an illness caused by a bacteria, and people usually get it from food or water that’s been contaminated. Cholera can be treated. But in severe cases, the disease can be fatal. f61More than 250 people have died from the recent cholera outbreak in Haiti. Part of the problem is that parts of Haiti haven’t recovered from that massive earthquake back in January. People are still living in tents, and they don’t have access to clean water.
   Health professionals know that they may be at a tipping point with this outbreak. They want to do all they can to contain it. They are stepping up the condition at public toilet. They are opening hand centers in order to clean your hands. They are having water deliveries to these areas. They are also having trucks on standby in order to take people throughout the night to hospitals if they feel sick And they are setting up, as a preventive measure, isolation areas.
5. What do we know about cholera from the news report?
6. Why did so many people die recently in Haiti?
7. What measure was taken to contain the spread of cholera?