News & Perspective

Sep 14, 2012

Sep 14, 2012

Latest variant flu cases include rare H1N1 strain

(CIDRAP News) – The number of swine-origin H3N2 (variant H3N2, or H3N2v) influenza cases in the United States has climbed by 9 in the past week, to 305, and another rare swine-origin variant, H1N1v, has cropped up in Missouri, the Centers for Disease Control and Prevention (CDC) reported today.