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"During the peak period for holiday travel, tourists will need to arrange their plans reasonably and be on alert for cold air," Zhu said.

"Economies around the world are encouraged to seek enhanced cooperation in developing Hainan. In this way the island can become a new engine to fuel global economic growth."

"Faced with the epidemic, we should give priority to boarding procedures and quarantine processes, including the measurement of temperatures of each passenger, performing epidemiological investigation and, if necessary, sending passengers directly to the hospital," she says.

"Economic development should not be achieved at the cost of the ecology. The ecological environment itself is the economy. Protecting the environment is developing productivity."

"Exposure to fine particles can cause short-term health effects such as eye, nose, throat and lung irritation, as well as coughing, sneezing, runny nose and shortness of breath," the guideline said.