Hui said microblogs played a crucial role in dealing with the floods over the weekend.

FORBES: Beijing Faces Criticism After Flood Kills At Least 37

Hui said the pigeons were probably infected by wild or migratory birds, whose droppings can carry viruses.

NPR: China Kills Market Birds As Flu Found In Pigeons

"The government will try not to do something they don't think they can handle right now, " said Eddie Hui, Professor at the Department of Building and Real Estate of the Hong Kong Polytechnic University.

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"In the past usually you would see chickens dying before any infections occurred in humans, but this time we've seen that many species of poultry actually have no apparent problems, so that makes it difficult because you lose this natural warning sign, " said David Hui, an infectious diseases expert at the Chinese University of Hong Kong.

NPR: China Kills Market Birds As Flu Found In Pigeons

Gordon Hui, the Asia managing director of UK yacht builder Sunseeker, said Chinese yacht builders are credible competitors, especially for smaller, family boats.

CNN: Made-in-China superyachts reflect changing tide of economy

"The heinous crimes committed by Seung-Hui Cho were an unprecedented act of violence that no one could have foreseen, " Mr. Owczarski said.

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