China confirmed Thursday that a case of coronavirus reported in Tibet meant that the outbreak had now spread to every region of the country. Chinese health officials said there were now 7,711 confirmed cases, marking a significant 1,500 jump in cases from the previous day. There are 170 reported deaths, all in mainland China. The virus has now spread globally with roughly 100 cases reported across at least 19 countries, according to the CDC, including five confirmed cases in the U.S. across four states, California, Washington, Arizona, and Illinois.

The World Health Organization announced it will meet again Thursday to reassess whether the outbreak now meets the threshold for a global health emergency. “In the last few days the progress of the virus, especially in some countries, especially human-to-human transmission, worries us,” WHO Director-General Tedros Adhanom Ghebreyesus said Wednesday. “Although the numbers outside China are still relatively small, they hold the potential for a much larger outbreak.”