Abstract: Objective To analyze the operation status and the effect of health science popularization of official account of Wechat for Parasitic and Tropical Diseases Prevention and Control in China for the application and prospect in promoting prevention and control of parasitic diseases and tropical diseases by means of new media. Methods The operational data on user characteristics and information communication ways in the official account of Wechat for Parasitic and Tropical Diseases Prevention and Control in China were collected from June 18, 2019 to October 25, 2021. Descriptive analysis methods was used to analyze the effects of health science popularization. Results By October 25, 2021, the number of subscribers in the account of Wechat for Parasitic and Tropical Diseases Prevention and Control in China reached 2 734. Female followers(53.80%) were greater than males, and the age ranged from 26 to 35 years(41.44%). The top five subscribers were from Shanghai, Guangdong, Jiangsu, Beijing and Shandong. One hundred and one pieces of articles were issued. The cumulative reading frequencies were 82 762, with an average of reading for 819 times for single article. All readings including 27 pieces of articles on health information of parasitic and tropical diseases. The cumulative reading frequencies were 16 680, with an average of reading for 618 times for single article. The reading rate of message delivery, shared transmission rate and reading completion rate were 8.06%, 800.49% and 56.26%, respectively. Users had higher interest in popular science articles on key parasitic diseases such as malaria and schistosomiasis. Conclusion The effect of health science popularization via official account of Wechat for Parasitic and Tropical Diseases Prevention and Control in China needs to be further improved. It is recommended to focus on increasing the number of graphic and textual information about key parasitic diseases, and develop publicity topics based on the field of tropical diseases and social hotspots in order to improve the efficacies in spreading the knowledge on prevention and control of parasitic and tropical diseases by expanding the followers through series of popular science activities. 

Key words: Parasitic diseases, Tropical diseases, WeChat official account, Health science popularization