LONDON (AP) - The impact on travel and commerce from the viral outbreak in China is playing out ahead of one of the world's biggest technology fairs. Facebook, U.S. tech giants Cisco Systems and Intel, the U.S. wireless companies AT&T and Sprint and the Chinese smartphone maker Vivo said Tuesday that they have pulled out of the Mobile World Congress. It's to take place Feb. 24-27 in Barcelona, Spain. Already, Ericsson, Amazon, Sony and LG have scrapped plans. It was expected to attract more than 100,000 visitors, including 5,000 to 6,000 from China, the source of the viral outbreak.

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