Senegal has been plunged in resolving the health crisis of the COVID-19 pandemic since its appearance in March 2019 on Senegalese territory. All useful means such as communication are pointed up to cut the line of contagion of the virus. In this communication fight against the COVID-19 pandemic, we noted the presence and use of concepts, slogans and / or “sloganized” expressions of which understanding of their communicative values requires an operation of interpretation and decoding. The perception of the informative content of such speech acts is based on their context of use by the communicating subjects. In the pragmatic theory of language where the communicational approach is based on fundamental notions: the implied and the presupposed, the interpretation of the communicative value is done through a set of values, common to the communicating subjects, which guarantees the intercomprehension of messages. This article aims, from a pragmatic and enunciative angle, to enumerate the slogans and concepts created in the management of the pandemic and then to identify their new semantic particularities, and to decipher their preventive implicit content in the communication of the fight against COVID-19. Particularities that are similar to calls for awareness on the existence and seriousness of the disease.