The number of confirmed cases of coronavirus in Hubei province, China, has increased for two successive days after a period of decline, the World Health Organization said in its daily report on Sunday.
"WHO is monitoring the situation and working to understand its possible significance," the report said.
The epicenter of the coronavirus outbreak is in Wuhan, the capital of Hubei province, and aggressive measures were taken in the province to contain the virus. On Wednesday, for the first time since the start of the outbreak, the number of new cases reported outside of China in a single day was larger than those reported inside China, WHO said.
Still, most of the new cases in China were in Hubei.
Dr. Liang Wannian, a senior official with China’s National Health Commission, said during a WHO press conference last week that despite "good news" of decreasing cases and deaths in Wuhan, "the current situation is still grim and complex."
Hundreds of new cases were confirmed and suspected every day, he said, "which means that the epidemic situation has not yet been completely contained by us."