Coronavirus-Symptoms-Prevention, CoVid-19, SARS-COV2, pandemic 2020. CoVid-19 started a pandemic in 2020. The virus responsible for this disease of the coronavirus family, called SARS-COV2 is shown in the top left sectional. We see its viral RNA called nucleocapsid. The mild symptoms of the disease are represented on the left of the silhouette, the complications on the right. Fever, fatigue, runny nose, dry cough, pain, body aches, respiratory syndromes, diarrhea and gastrointestinal syndromes are mild symptoms of the disease. In 80% of cases, healing occurs without treatment. While complications can cause hemoptysis (rejection of blood), pneumonia, severe acute respiratory syndrome, heart complications, kidney failure. These complications can lead to the death of the patient. SARS-COV2 is transmitted by respiratory droplets in the air (postillions in suspension). It is also transmitted by hands contaminated with objects soiled by the deposit of postillions. Finally, you must have the right actions to protect yourself from COVID 19. Wash your hands regularly with soap or hydroalcoholic gel, cough and sneeze into your elbow. But you must also use disposable tissues and throw them away and exclude any physical contact. Finally, in the event of illness, the patient should wear a disposable surgical mask. Strasbourg, Bas-Rhin, France.