New tests on chickens to boost bird-flu defences

Blood-serum tests will complement DNA probes by showing whether chickens without the virus have been previously exposed

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He Huifeng

He Huifeng

He Huifeng is an award-winning journalist and has been focusing on mainland news reporting since 2001 for several overseas media. She has gained an in-depth knowledge of political, economic and social issues on the mainland through years of close observation, which has given her a love for journalism in the field.