In the meantime, some areas in the Yangtze River delta have moved faster than the Pearl River delta to improve conditions for migrants.

ECONOMIST: Amazingly, China has labour shortages

The new bird flu virus outbreak continues to dominate media headlines, as China Central Television reports 14 diagnosed cases and five deaths in the Yangtze River Delta region.

BBC: China media: Bird flu outbreak

Wednesday, the Chinese Academy of Sciences said the H7N9 virus probably came from migratory birds from East Asia that mixed with domestic fowl in China's Yangtze River delta region around Shanghai.

CNN: WHO reports 5 new bird flu cases in China; total now 49

Now it is mainly flowing into Shanghai and other parts of the Yangtze river delta, where technology-savvy workers are easier to find and transport to foreign and domestic markets is convenient.

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The Beijing News backs a proposal by the capital's mayor to follow the example of the Yangtze River Delta and Pearl River Delta regions and set up a joint air pollution control system between Beijing, Tianjin and Hebei.

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Both newspapers say the public also need answers on why the authorities did not report the first case of bird flu in Shanghai sooner, as well as the cause of death for thousands of pigs in the Yangtze River Delta and several sparrows in Nanjing in recent weeks.

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