Jiēzhòng yìmiáo shì yùfáng liúgǎn bìngdú de yǒuxiào fāngfǎ.
Vaccination is an effective way to prevent the flu virus.
Tips
usage
流感 (liugan) is short for 流行性感冒 (liuxingxing ganmao, 'epidemic cold'). Add 病毒 (virus) for the pathogen itself. Major subtypes you'll encounter in news: 甲型 H1N1 (Type A H1N1), 乙型流感 (Type B influenza).