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WRAPUP 2-Beijing restricts public transport as COVID spreads in China

(Updates with more Beijing metro stations closing, latest in Lingang trade zone)

* Beijing shuts more than 60 metro stations, 158 bus routes

* Zhengzhou to enforce strict COVID curbs in coming week

* Shanghai finds it difficult to exit month-long lockdown

BEIJING/SHANGHAI, May 4 (Reuters) - The Chinese capital Beijing shut dozens of metro stations and bus routes on Wednesday in its campaign to stop the spread of COVID-19 and avoid the fate of Shanghai where millions of residents have been under strict lockdown for more than a month.

China's uncompromising battle against the coronavirus, which is believed to have emerged in Wuhan city in late 2019, is undermining its growth and hurting the international companies invested there, according to the latest forecasts and data.

The central city of Zhengzhou, home to 12.6 million people and a factory of Apple's iPhone manufacturer Foxconn, announced work-from-home and other COVID curbs for the coming week late on Tuesday, joining dozens of big cities under some form of lockdown.

The capital shut more than 60 subway stations, about 15% of the network, and 158 bus routes, service providers said. Most of the suspended stations and routes are in the Chaoyang district, the epicentre of Beijing's outbreak.

With dozens of new cases a day, Beijing is trying to avoid a full lockdown, as Shanghai also did initially, instead hoping that mass testing will find and isolate the virus before it spreads.

The city of 22 million people has closed schools, restaurants, gyms and entertainment venues, as well as some businesses and residential buildings in high-risk areas.

In what will be a worrying sign for Beijing residents, workers in protective gear were seen setting up a two-metre high blue metal wall around a residential complex, with a sign at the gate reading "Entry only. No exit."

Twelve out of 16 Beijing districts conducted the second of three rounds of tests this week, having done three screenings last week.

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In Shanghai, there's no end in sight for the lockdown.

After more than a month, most people in mainland China's biggest city are still not allowed to leave their housing compounds.

Some residents have benefited from a tentative easing of precautions since Sunday, with usually just one member of a household allowed out for a quick stroll and grocery shopping.

The latest data showed Shanghai found 63 new cases outside areas under the strictest curbs, suggesting it has a way to go before reaching the goal of no cases for several days for curbs to ease significantly.