Bird flu scare gives shot in the arm to vaccine shares
But mainland poultry companies take a hit as panic selling sets in over fears of a mass cull

Vaccine shares rose while mainland poultry companies declined on the stock market yesterday as the H7N9 bird flu scare in eastern China triggered speculation that Beijing could order a cull to prevent an epidemic.
Four people in Jiangsu province were reportedly fighting for their lives after it was confirmed they were infected with the virus.
According to social networking site Sina Weibo, one of the patients is a 45-year-old Jiangsu woman, who worked as a poultry butcher at a local market.
The eastern city of Hangzhou confirmed two cases of H7N9, Beijing News reported last night.
Hunan New Wellful, which operates pig farms and exports to Hong Kong and Macau, fell 7 per cent to 5.82 yuan in Shanghai.
Chuying Agro-pastoral, also involved in pig farming, egg production and poultry breeding, lost 6.6 per cent to close at 14.70 yuan. Henan Shuanghui Investment, which manufactures meat products and frozen food, lost 5.7 per cent to close the day at 72.60 yuan.
The Shanghai Composite Index dipped 0.11 per cent to 2,225.30 points.