During the pandemic crisis of Covid19, interrogations and information requests from governments culminated day after day. It has pushed health care providers to transmit credible information to citizens to clear up any ambiguities that may hinder this latter. For crisis communication to be effective, certain measures must be respected and put in place. As the channel is appropriate for the transmission of information, the good wording of messages in order to reassure the population. But also, one has to face the problems that can hinder this type of communication as the false information or infox circulating

Communication, Social Networks, Sanitary Crisis, Infox

[1] Abdelaziz, AB, El Haddad, N., Hannachi, H., Nouira, S., Melki, S., Chebil, D., & Boussouf, N, Quality of crisis communication support during the COVID- pandemic 19 in the Grand Maghreb, Review of Epidemiology and Public Health, 2021.

[2] Bérubé, P., The management of communications in situations of risk and crisis. Introduction to Public Relations: Foundations, Issues and Practices, 2019.

[3] Cheng, Y., How social media is changing crisis communication strategies: Evidence from the updated literature, Journal of contingencies and crisis management, 2018, 26 (1), 58-68.

[4] Cohen, D.A., Scribner, R.A. and Farley, T.A., A structural model of health behavior: A pragmatic approach to explain and influence health behaviors at the population level, Journal of Preventive Medicine, (30), 2000, 146–154.

[5] Coombs, WT, State of crisis communication: Evidence and the bleeding edge, Research Journal of the Institute for Public Relations, 1 (1), 2014, 1-12.

[6] Keyton, Joann, Communication and Organizational Culture: A Key to Understanding Work Experiences, 2nd Edition, Sage Publishing Inc, 2011.

[7] Kryvasheyeu, Y., & Chen, H., Performance of social network sensors during hurricane sandy. PloS One, 10 (2), 2015, e0117288. 2482.

[8] Lagadec, P., Crisis management, Paris: McGraw Hill, 1991.

[9] Libaert, T., Crisis communication, Paris: Dunod, 2005.

[10] OKHAYA, L., Covid's Social Social Networks 19, Journal of Integrated Studies in Economics, Law, Technical Sciences & Communication, 2 (1), 2020.

[11] OLLIVIER-YANIV C., Sanitary Public Communication in the Test of Controversy, Hermès, La Revue, vol. 73, no. 3, 2015, pp. 69–80,

[12] Ratzan, SC, Sommarivac, S., & Rauh, L., Enhancing global health communication during a crisis: lessons from the COVID-19 pandemic, 2020.

[13] Roux-Dufort, C., Managing and Deciding in Crisis, Paris: Dunod, 2003.

[14] Schultz, F., Utz, S., & Göritz, A., Is the medium the message? Perceptions of and reactions to crisis communication via twitter, blogs and traditional media, public relations review, 37 (1), 2011, 20-27.

[15] Tambo, E., Djuikoue, IC, Tazemda, GK, Fotsing, MF, & Zhou, XN, Early-stage risk communication and community engagement (RCCE) strategies and measures against coronavirus disease 2019 (COVID-19) pandemic crisis, Global Health Journal, 2021.

[16] Wolton Dominique, Il faut sauver la communication, Ed: Flammarion, 2005, 224 p.

[17] Xu X., Wenjun Cao, Ziwei Khuwaysāt,Guoqiang Hou,Mei Han, Jiaxin Dong, a andJianzhong Zheng, , The psychological impact of the COVID-19 epidemic on college students in China,Psychiatry Res.2020; P.287

[18] Yates, S., The notion of social acceptability: Lay citizens as a new political force. Dans M. Lalancette, V. Raynauld et E. Crandall, What's #Trending in Canadian Politics? Understanding Transformations in Power, Media, and the Public Sphere. Vancouver: UBC Press, 2019.

[19] Zogby, J., How the internet has changed polling, In Forbes, 2009.