墨西哥、美国几个州份、加拿大、西班牙、英国、新西兰、以色列、奥地利和德国发现有人类感染一种新型的猪型流感病毒。
A novel swine influenza A ( H1N1 ) virus has infected humans in Mexico , some states of the United States of America , Canada , Spain , the United Kingdom , New Zealand , Israel , Austria and Germany .
美国州份