56 JHE 7 (1) (2022) Journal of Health Education http://journal.unnes.ac.id/sju/index.php/jhealthedu Te Role of Covid-19 Information in Social Media on Knowledge and Behavior of the Semarang City Community Rani Tiara Desty  , Wahyuni Arumsari Ivet University, Indonesia Article Info Article History: Submitted 04 Maret 2022 Accepted 15 April 2022 Published 30 April 2022 Keywords: Social media; knowledge; behavior; COVID-19 DOI https://doi.org/10.15294/jhe. v7i1.55262 Abstract Background: Social media is one of the fastest ways to deliver information with internet technology. News of COVID-19 is broadcast on various media, one of which is social media. Te city of Semarang is in the frst place with the largest number of cases in Central Java Province with 95.176. Te purpose of this study was to determine the relationship between the quality of COVID-19 informa- tion on social media and public response, the relationship between public re- sponse to knowledge, and the relationship between knowledge and community behavior regarding COVID-19. Methods: Tis study uses an analytic observational study with a cross-sectional design. Te research sample is Semarang residents who have social media with an age range of 15-65 years. Results: Te results showed that there is a signifcant relationship between the quality of COVID-19 information on social media and public response (p=0,00). Tere is a signifcant relationship between public response and knowl- edge related to COVID-19 (p=0,022). Tere is a signifcant relationship between the knowledge and behavior of respondents (p=0,027). Conclusions: Providing valid, specifc, and reliable information on social me- dia can improve the behavior of prevention eforts against COVID-19.  Correspondence Address: Email : ranitiaradesty@ivet.ac.id p-ISSN 2527-4252 e-ISSN 2528-2905