Severe Complicated Influenza Case(2009)

Severe Complicated Influenza Case(2009)

Since April 2009, pandemic influenza A (H1N1) cases have been reported, and the disease spread out rapidly throughout this world. On April 26, 2009, World Health Organization (WHO) announced the definition of pandemic influenza A (H1N1). In Taiwan, the disease was immediately listed in Category 1 notifiable communicable diseases. It was stipulated that all medical care institutions shall report any suspected H1N1 cases within 24 hours in favor of epidemic surveillance. Since then, a total of 61 cases were confirmed (Among them, 59 cases were imported). Later, as many H1N1 patients developed only mild symptoms, WHO defined this epidemic as a “mild” one. Thus, since June 19, H1N1 was excluded from the Category 1 notifiable communicable diseases, any influenza A (H1N1) cases with severe complications should be reported in accordance with regulations applicable to Category 4 notifiable communicable diseases, and subject to that category’s corresponding prevention and control measures.