Sent_en: 2zh In a briefing with reporters Thursday, WHO Special Pandemic Influenza Advisor Keiji Fukuda said the virus has been particularly active in the Northern Hemisphere in recent months.
Sent_yy: 世界卫生组织特别流感顾问福田敬二星期四在记者会上说，最近几个月来，这种病毒在北半球特别活跃。