Simple, easy-to-read information and advice from the State is here.
If you do nothing else, wash your hands frequently. Good hand washing involves soap and warm water, and you should spend about 15 seconds lathering up your hands - about as long as it takes to hum the "Happy Birthday" song either out loud or mentally. Rinse, dry off with paper towels, and use the towel turn off the faucet and to open the door of the rest room.
Update 9/22/09: More information from the state here.
Ms. Fritz,
I have been reading about the Swine Flu in the newspaper and was hoping for some more information. Could you please answer some of my questions regarding the H1N1 Swine Flu? What degree has the Swine Flu affected Portland? Is there a particular age group that is being hit more so than others? Are the predictions regarding high risk people accurate? Do you think that there is enough education being given to people? What ways are you getting the information out to all of the people of Portland? Thank you for taking the time to answer my questions.