Firstly the novel coronavirus occurred in WUHAN city (CHINA), then it has rapidly spread across China and many other countries. On March 11, 2020, the World Health Organization (WHO) declared the COVID-19 coronavirus disease outbreak a pandemic. The danger of that virus doesn’t lay mostly on its lethality but on its strong transmissibility. The clinical symptoms of COVID-19 patients include fever, dry cough, fatigue and sometimes abdominal pain. The elderly and people with underlying chronic diseases represent a higher risk of complications. There still no consensus regarding the best antiviral treatment, but a large variety of drugs have been tested and have shown good outcomes ( chloroquine, hydroxychloroquine, Remdesivir, lopinavir and ritonavir…). In this review, we summarized the signs and symptoms, the transmission modes of COVID-19, we detailed the diagnosis and the updates regarding its treatment, and concluded with the epidemiologic state in Morocco and the actions taken by the government to avoid the spreading of the virus.