广东进入人感染H7N9禽流感病例易发和多发期 (Experts: high risk of H7N9 infection in Guangdong this winter and next spring)
Xinhua, December 17, 2013
http://news.163.com/13/1216/21/9G8D5PKH00014JB5.html
Related:
Second new H7N9 case in 2 days hits Guangdong
South China Morning Post, December 17, 2013
http://www.scmp.com/news/china/article/1382759/guangdong-confirms-fourth-case-h7n9-bird-flu