This malady will hit global suppliers as well. Tech companies such as Apple, Chinese smartphone maker Xiaomi and local electronic component maker BOE Technology rely on factories in Wuhan. Apple blames its wider-than-usual first-quarter earnings forecast range on this. Production losses are expected from Taiwan's Hon Hai, which makes most of the world's iPhones. Shares in the company, also known as Foxconn, have fallen a tenth in the past two weeks.
Finding alternative suppliers will not be easy. More than a third of factories supplying Apple are based in Chinese cities which have extended plant closures.
The timing could not have been worse. Just as economic growth tapers off, containing the virus should lop 1.6 percentage points off Goldman Sachs' China GDP growth rate estimate in the first quarter, down to just 4 per cent. That would be a much bigger hit than Hong Kong's during the Sars epidemic.
The disruption underlines China's central position as a manufacturing hub for the electronics and automotive industries. It could undermine that status too. China's large, fluid industrial workforce has given China a big competitive advantage. The epidemic has shown it has a definite downside.
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