avian flu

例句：

1. 1. The outbreak of avian flu has caused significant concern among the public.
   禽流感的爆发引起了公众的广泛关注。
2. 2.Many countries have implemented strict measures to prevent the spread of avian flu.
   许多国家已经实施了严格的措施来防止禽流感的传播。
3. 3. Researchers are working on developing a vaccine to combat avian flu.
   研究人员正在努力开发一种疫苗来对抗禽流感。