Passengers talk about life aboard stricken cruise ship
"Natural ventilation by opening windows is the best choice," he said.
Liu also said it was not a good decision to allow the passengers to stay on the Diamond Princess for quarantine.
"The biggest weakness on cruise ships in cases of infectious disease is that most cabins are small and almost sealed, with no windows, which can cause a virus to spread quickly," he said.
"In addition, each passenger must be quarantined in a single room, as those who are infected but have no symptoms may also transmit the virus, which will lead to a rise in the number of infections."
Ye Xinliang, a professor at the School of Management at Shanghai University of Engineering Science, suggested that cruise companies should establish a declaration system to determine tourists' recent travel history and health condition. This information should be shared promptly with customs and health authorities.
"Cruise companies can also use equipment such as thermal monitors to automatically measure visitors' temperature before they enter public areas from their cabins," Ye said.
He added that the case of the Diamond Princess will have a psychological impact on Chinese tourists, as some will now believe that such cruises are unsafe. "It takes time to restore market confidence and foster new customers," he said.
