MMWR Morb Mortal Wkly Rep. 2006 Apr 14;55(14):402-4.
During March 26-April 1, 2006, the number of states reporting widespread influenza activity decreased to 13. Fourteen states reported regional activity, 12 reported local activity, 10 reported sporadic activity, and one reported no activity.
在2006年3月26日至4月1日期间，报告有广泛流感活动的州数量降至13个。14个州报告有区域性活动，12个州报告有局部活动，10个州报告有散发性活动，1个州报告无活动。
