CCTV9英语新闻：广州增强对抗禽流感的预防措施（在线收听）

Guangzhou has stepped up control and prevention measures to fight against the resurging of the H7N9 virus. Disease control authority says samples taken from sick chickens have tested positive for avian influenza. Local authorities have advised people to take precautions and choose poultry markets that meet legal standards.