To the editor: Originated from Wuhan city in central China and widely spread due to the mass migration for Lunar new year holiday, 17,000+ confirmed novel coronavirus (2019-nCoV)-infected pneumonia (NCIP) cases with 350+ deaths have been identified in the country since December 2019 [1–2]. Another 100+ exported cases have been confirmed in other countries worldwide [3]. During 10:30am to 10:30pm, January 29th, 2020 (UTC + 8), we initiated an online survey on people’s knowledge on NCIP by snowball sampling via Wechat invitation. 3083 invitees of 18–59 years old (2/3 females and 4/5 with bachelor’s degree or higher) from all provinces in mainland China were enrolled, three quarters of which were from the six most developed provinces in China (Zhejiang, Guangdong, Shandong, Beijing, Shanghai, Jiangsu).