China is now tightening quarantine restrictions for travellers in Beijing and other major cities, as number of imported cases have increased.
Of the 78 new cases, 74 were imported infections, up from 39 imported cases a day earlier.
According to reports, all travellers entering the Chinese cities will be subject to centralised quarantine and health checks.
Those arriving in Shenzhen will be tested, while visitors from the mainland, Hong Kong and Taiwan will be banned in the Chinese territory of Macau.
Meanwhile, rules have been relaxed in the epicentre of the virus, Hubei province, and several Chinese cities have seen no new infections in recent days.
So far, the country has recorded nearly 3,300 deaths and nearly 82,000 infections.
At least 91 Palestinians were killed and dozens wounded in airstrikes across Gaza on Thursday after Israel resumed bombing and ground operations, the enclave's health ministry said, effectively ditching a two-month-old ceasefire.
US President Donald Trump will sign a long-anticipated executive order on Thursday that aims to shut down the Department of Education, acting on a key campaign pledge, according to a White House summary seen by Reuters.
The Israeli military said on Wednesday its forces resumed ground operations in the central and southern Gaza Strip, as a second day of airstrikes killed at least 48 Palestinians, according to local health workers.
US President Donald Trump and Ukrainian President Volodymyr Zelenskyy agreed on Wednesday to work together to end Russia's war with Ukraine, in what the White House described as a "fantastic" one-hour phone call.
Serbia's parliament formally accepted the resignation of Prime Minister Milos Vucevic on Wednesday, triggering a 30-day deadline for the formation of a new government or the calling of a snap election.