Maine officials, like their counterparts elsewhere, are monitoring swine flu developments. Maine Center for Disease Control and Prevention Director Dora Anne Mills said Monday that several Mainers have been tested for swine flu as it spreads throughout the world, but the tests all came back negative. But Mills says the state is preparing for swine flu’s expected arrival in Maine as people who have been traveling during spring break return and develop symptoms. Mills says the state’s been preparing for a pandemic for years and she’s in daily contact with her federal health counterparts. She expects 30,000 to 40,000 doses of anti-viral medicine to arrive in Maine from the federal government. Mills says the goal now is to minimize the flu’s impact.For more information visit www.cdc.gov/swineflu.