Among the 55 new cases of infection, 13 are imported: four were detected in Shanghai, three in Liaoning province, two in Tianjin, one each in Fujian, Henan, Guangdong and Shaanxi provinces.

Another 42 cases are internal: 40 of them were detected in Hebei province, one each in Beijing and Heilongjiang province.

Earlier it was reported that the World Health Organization (WHO) hopes to work closely with China to identify the source of COVID-19.