◆ H1N1新型流感疫情：● 黃燈，第四級 ( 社區流行，但控制中 )

美國CDC 5/19宣布，目前該國計有48州出現5,469例確定病例，包含6例死亡病例。各州累計確定病例分別為：Alabama(61), Arkansas(3), Arizona(488, 2死亡), California(553), Colorado(56), Connecticut(56), Delaware(69), Florida(103), Georgia(25), Hawaii(21), Idaho(8), Illinois(707), Indiana(96), Iowa(71), Kansas(34), Kentucky(16), Louisiana(65), Maine(10), Maryland(39), Massachusetts(156), Michigan(165), Minnesota(38), Mississippi(4), Missouri(20), Montana(9), Nebraska(28), Nevada(31), New Hampshire(20), New Jersey(18), New Mexico(68), New York(267), North Carolina(12), North Dakota(3), Ohio(13), Oklahoma(42), Oregon(94), Pennsylvania(55), Rhode Island(8), South Carolina(36), South Dakota(4), Tennessee(85), Texas(556, 3死亡), Utah(91), Vermont(1), Virginia(23), Washington(362, 1死亡), Washington, D.C.(13), Wisconsin(766)。