Background: In Taiwan, average influenza associated mortality is approximately 4,500 per year. Influenza vaccination is the most effective method to prevent influenza infection and reduce its potentially severe complications. In 1997, Taiwan launched the influenza vaccination campaign. Since 1998, the government continually provides free influenza vaccines to elderly aged 65 and above and other high risk groups. The purpose of this article is to assess the effectiveness of influenza vaccination in the elderly.
展开▼
