By early next week, the first batch of some 250 million swine flu vaccine treatments will be available free, paid for by the American government. In an unprecedented preventive campaign, health officials are trying to blunt the impact of the H1N1 virus, or swine flu, as it’s commonly called. But symptoms are described as a mild influenza. Is the public overreacting? Is the media getting the story right? What do you need to know? What do you need to do?