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"Convenient and efficient transportation networks are critical to the free flow of production factors, cross-border trade and travels," he said.

"Convalescent serum therapy could be a vital treatment route because unfortunately there is relatively little to offer many patients except supportive care, and the ongoing clinical trials are going to take a while. We don't have that much time," Dr Eric Salazar, a physician scientist with Methodist's Research Institute, told the Houston Chronicle.

"Chinese online celebrities have higher education levels and younger fans, and endorsing brands is becoming their main way to make money," the report said.

"Compared with the previous two years, at least 3,000 to 4,000 new games had been blocked from the market in 2018," said Liu Wei, an analyst from market research company iResearch. "The demographic dividends are wearing off, which is another factor driving the slowing growth."

"China will as always play a positive role to this end," Lu added.