As of 23 January , the number of laboratory-confirmed cases stands at 580 , including 569 in mainland China , 4 in Thailand , 2 in Hong Kong , one in Japan , one in South Korea , one in Taiwan , one in Macau and one in the United States.
By 23 January , less than 570 COVID-19 cases had been confirmed , including less than 565 in Mainland China during the pandemic .