As reports of swine flu continue to rise in the United States and around the world, the average American is probably asking, "How should I protect myself?" And the answer is: Do what you’d do in other flu outbreaks. The Centers for Disease Control and Prevention is advising people to “take the ordinary steps they would take to protect themselves: frequent hand washing, and making sure you cover your nose and mouth when coughing or sneezing.” By midday Sunday, there were 20 confirmed cases in the United States