China could experience a so-called "Black Swan effect" in the first half of the calendar year due to the new coronavirus outbreak that has killed more than 1,000 people on the mainland.
China's movie theaters were ramping up for one of their biggest sales seasons of the year — hiring extra staff and buying more supplies — when the coronavirus hit.
A second day of drills by China's military close to Taiwan were aimed at improving combat capabilities, the People's Liberation Army said, after Taiwan's air force scrambled to intercept Chinese jets that briefly crossed the Taiwan Strait's mid-line.
Investors continue to watch for developments on the ongoing coronavirus outbreak, where uncertainty remains over when work can resume at factories in China.
The U.S. Justice Department announced Monday that it has indicted four members of China's military for the cyberattack against credit ratings agency Equifax in 2017.
Naughton's departure comes in the midst of a slow-rolling executive shakeup over the last several months, as co-founders Larry Page and Sergey Brin stepped down from their roles.
"We don't know much about it, and therefore we're all concerned to make certain it doesn't evolve into something even worse," Columbia University's Ian Lipkin said.
Several automakers are reopening or preparing to restart factories in China on Monday after an extended holiday shutdown due to the coronavirus, which is now responsible for more than 900 deaths in the country.