inclusion criteria: * age 18 to 59 years old or over 60 years old. * if patient 18 to 59 years old, presence of at least one risk factor : * hypertension under treatment (all stages) * obesity (bmi ≥30 kg / m2) * diabetes under treatment (all types) * stable ischemic heart disease (all stages) * atrial fibrillation * stable heart failure (all stages) * history of stroke * stage 3 chronic renal failure (30 ≤ estimated gfr \<60 ml / min / 1.73 m²) * copd (all stages, including chronic respiratory failure under long-term oxygen therapy) * solid tumors or malignant hemopathies that are progressive or whose diagnosis is less than 5 years old * immunodeficiency: * of therapeutic origin (solid organ transplantation or transplant of hematopoietic stem cells, anticancer chemotherapy, immunosuppressive treatment, corticosteroid therapy\> 15 mg / day equivalent to prednisone price for at least 2 months); * or hiv infection and last known cd4 count \<200 / mm3 * history of pulmonary embolism and / or proximal deep vein thrombosis * asthma under inhaled corticosteroid therapy * paired sleep apnea syndrome * peripheral arterial disease of the lower limbs stage ii and above * another risk factor presented, according to the list defined by the french high council of public health * or presence of at least 3 comorbidities, according to the rapid responses to covid-19 from the french high council of public health. * patient with nasopharyngeal swab (antigenic test, rt-pcr, or other has-validated swabs to come) : * in case of positive test (antigenic test, rt-pcr, other), patient with at least 1 symptom at the time of testing: * in case of negative antigenic or other test or ongoing or uninterpretable rt-pcr test, the patient must present at least 3 of the 11 symptoms of covid-19 dating back no more than 4 days as defined below and notion of contact (with a certain or probable covid+ patient) dating back less than 10 days: fever \> 37,5°c since 3 days cough sore throat/cold headache anosmia, dysgeusia myalgias, arthralgias, bone pain respiratory difficulties (feeling of dyspnea at rest) chest pain (sternal) digestive complaints (diarrhea, nausea, vomiting) tachycardia (palpitation) conjunctivitis (red eyes) * no seriousness signs during the consultation and for at least 72 hours. * patient able to understand the procedure and follow it and have tools for a video-consultation. * affiliation to the social security system. * voluntary to participate to the study, informed consent form signed after appropriate information

inclusion criteria: * age 18 to 59 years old or over 60 years old. * if patient 18 to 59 years old, presence of at least one risk factor : * hypertension under treatment (all stages) * obesity (bmi ≥30 kg / m2) * diabetes under treatment (all types) * stable ischemic heart disease (all stages) * atrial fibrillation * stable heart failure (all stages) * history of stroke * stage 3 chronic renal failure (30 ≤ estimated gfr \<60 ml / min / 1.73 m²) * copd (all stages, including chronic respiratory failure under long-term oxygen therapy) * solid tumors or malignant hemopathies that are progressive or whose diagnosis is less than 5 years old * immunodeficiency: * of therapeutic origin (solid organ transplantation or transplant of hematopoietic stem cells, anticancer chemotherapy, immunosuppressive treatment, corticosteroid therapy\> 15 mg / day equivalent to prednisone price for at least 2 months); * or hiv infection and last known cd4 count \<200 / mm3 * history of pulmonary embolism and / or proximal deep vein thrombosis * asthma under inhaled corticosteroid therapy * paired sleep apnea syndrome * peripheral arterial disease of the lower limbs stage ii and above * another risk factor presented, according to the list defined by the french high council of public health * or presence of at least 3 comorbidities, according to the rapid responses to covid-19 from the french high council of public health. * patient with nasopharyngeal swab (antigenic test, rt-pcr, or other has-validated swabs to come) : * in case of positive test (antigenic test, rt-pcr, other), patient with at least 1 symptom at the time of testing: * in case of negative antigenic or other test or ongoing or uninterpretable rt-pcr test, the patient must present at least 3 of the 11 symptoms of covid-19 dating back no more than 4 days as defined below and notion of contact (with a certain or probable covid+ patient) dating back less than 10 days: fever \> 37,5°c since 3 days cough sore throat/cold headache anosmia, dysgeusia myalgias, arthralgias, bone pain respiratory difficulties (feeling of dyspnea at rest) chest pain (sternal) digestive complaints (diarrhea, nausea, vomiting) tachycardia (palpitation) conjunctivitis (red eyes) * no seriousness signs during the consultation and for at least 72 hours. * patient able to understand the procedure and follow it and have tools for a video-consultation. * affiliation to the social security system. * voluntary to participate to the study, informed consent form signed after appropriate information

inclusion criteria: - age 18 to 59 years old or over 60 years old. - if patient 18 to 59 years old, presence of at least one risk factor : - hypertension under treatment (all stages) - obesity (bmi ≥30 kg / m2) - diabetes under treatment (all types) - stable ischemic heart disease (all stages) - atrial fibrillation - stable heart failure (all stages) - history of stroke - stage 3 chronic renal failure (30 ≤ estimated gfr <60 ml / min / 1.73 m²) - copd (all stages, including chronic respiratory failure under long-term oxygen therapy) - solid tumors or malignant hemopathies that are progressive or whose diagnosis is less than 5 years old - immunodeficiency: - of therapeutic origin (solid organ transplantation or transplant of hematopoietic stem cells, anticancer chemotherapy, immunosuppressive treatment, corticosteroid therapy> 15 mg / day equivalent to prednisone price for at least 2 months); - or hiv infection and last known cd4 count <200 / mm3 - history of pulmonary embolism and / or proximal deep vein thrombosis - asthma under inhaled corticosteroid therapy - paired sleep apnea syndrome - peripheral arterial disease of the lower limbs stage ii and above - another risk factor presented, according to the list defined by the french high council of public health - or presence of at least 3 comorbidities, according to the rapid responses to covid-19 from the french high council of public health. - patient with nasopharyngeal swab (antigenic test, rt-pcr, or other has-validated swabs to come) : - in case of positive test (antigenic test, rt-pcr, other), patient with at least 1 symptom at the time of testing: - in case of negative antigenic or other test or ongoing or uninterpretable rt-pcr test, the patient must present at least 3 of the 11 symptoms of covid-19 dating back no more than 4 days as defined below and notion of contact (with a certain or probable covid+ patient) dating back less than 10 days: fever > 37,5°c since 3 days cough sore throat/cold headache anosmia, dysgeusia myalgias, arthralgias, bone pain respiratory difficulties (feeling of dyspnea at rest) chest pain (sternal) digestive complaints (diarrhea, nausea, vomiting) tachycardia (palpitation) conjunctivitis (red eyes) - no seriousness signs during the consultation and for at least 72 hours. - patient able to understand the procedure and follow it and have tools for a video-consultation. - affiliation to the social security system. - voluntary to participate to the study, informed consent form signed after appropriate information

inclusion criteria: - age 18 to 59 years old or over 60 years old. - if patient 18 to 59 years old, presence of at least one risk factor : - hypertension under treatment (all stages) - obesity (bmi ≥30 kg / m2) - diabetes under treatment (all types) - stable ischemic heart disease (all stages) - atrial fibrillation - stable heart failure (all stages) - history of stroke - stage 3 chronic renal failure (30 ≤ estimated gfr <60 ml / min / 1.73 m²) - copd (all stages, including chronic respiratory failure under long-term oxygen therapy) - solid tumors or malignant hemopathies that are progressive or whose diagnosis is less than 5 years old - immunodeficiency: - of therapeutic origin (solid organ transplantation or transplant of hematopoietic stem cells, anticancer chemotherapy, immunosuppressive treatment, corticosteroid therapy> 15 mg / day equivalent to prednisone price for at least 2 months); - or hiv infection and last known cd4 count <200 / mm3 - history of pulmonary embolism and / or proximal deep vein thrombosis - asthma under inhaled corticosteroid therapy - paired sleep apnea syndrome - peripheral arterial disease of the lower limbs stage ii and above - another risk factor presented, according to the list defined by the french high council of public health - or presence of at least 3 comorbidities, according to the rapid responses to covid-19 from the french high council of public health. - patient with nasopharyngeal swab (antigenic test, rt-pcr, or other has-validated swabs to come) : - in case of positive test (antigenic test, rt-pcr, other), patient with at least 1 symptom at the time of testing: - in case of negative antigenic or other test or ongoing or uninterpretable rt-pcr test, the patient must present at least 3 of the 11 symptoms of covid-19 dating back no more than 4 days as defined below and notion of contact (with a certain or probable covid+ patient) dating back less than 10 days: fever > 37,5°c since 3 days cough sore throat/cold headache anosmia, dysgeusia myalgias, arthralgias, bone pain respiratory difficulties (feeling of dyspnea at rest) chest pain (sternal) digestive complaints (diarrhea, nausea, vomiting) tachycardia (palpitation) conjunctivitis (red eyes) - no seriousness signs during the consultation and for at least 72 hours. - patient able to understand the procedure and follow it and have tools for a video-consultation. - affiliation to the social security system. - voluntary to participate to the study, informed consent form signed after appropriate information

inclusion criteria: - age 40 to 59 years old or over 60 years old. - if patient 40 to 59 years old, presence of at least one risk factor : - hypertension under treatment (all stages) - obesity (bmi ≥30 kg / m2) - diabetes under treatment (all types) - stable ischemic heart disease (all stages) - atrial fibrillation - stable heart failure (all stages) - history of stroke - stage 3 chronic renal failure (30 ≤ estimated gfr <60 ml / min / 1.73 m²) - copd (all stages, including chronic respiratory failure under long-term oxygen therapy) - solid tumors or malignant hemopathies that are progressive or whose diagnosis is less than 5 years old - immunodeficiency: - of therapeutic origin (solid organ transplantation or transplant of hematopoietic stem cells, anticancer chemotherapy, immunosuppressive treatment, corticosteroid therapy> 15 mg / day equivalent to prednisone price for at least 2 months); - or hiv infection and last known cd4 count <200 / mm3 - history of pulmonary embolism and / or proximal deep vein thrombosis - asthma under inhaled corticosteroid therapy - paired sleep apnea syndrome - peripheral arterial disease of the lower limbs stage ii and above - another risk factor presented, according to the list defined by the french high council of public health - or presence of at least 3 comorbidities, according to the rapid responses to covid-19 from the french high council of public health. - patient with nasopharyngeal swab (antigenic test, rt-pcr, or other has-validated swabs to come) : - in case of positive test (antigenic test, rt-pcr, other), patient with at least 1 symptom at the time of testing: - in case of negative antigenic or other test or ongoing or uninterpretable rt-pcr test, the patient must present at least 3 of the 11 symptoms of covid-19 dating back no more than 4 days as defined below and notion of contact (with a certain or probable covid+ patient) dating back less than 10 days: fever > 37,5°c since 3 days cough sore throat/cold headache anosmia, dysgeusia myalgias, arthralgias, bone pain respiratory difficulties (feeling of dyspnea at rest) chest pain (sternal) digestive complaints (diarrhea, nausea, vomiting) tachycardia (palpitation) conjunctivitis (red eyes) - no seriousness signs during the consultation and for at least 72 hours. - patient able to understand the procedure and follow it and have tools for a video-consultation. - affiliation to the social security system. - voluntary to participate to the study, informed consent form signed after appropriate information

inclusion criteria: - age 40 to 59 years old or over 60 years old. - if patient 40 to 59 years old, presence of at least one risk factor : - hypertension under treatment (all stages) - obesity (bmi ≥30 kg / m2) - diabetes under treatment (all types) - stable ischemic heart disease (all stages) - atrial fibrillation - stable heart failure (all stages) - history of stroke - stage 3 chronic renal failure (30 ≤ estimated gfr <60 ml / min / 1.73 m²) - copd (all stages, including chronic respiratory failure under long-term oxygen therapy) - solid tumors or malignant hemopathies that are progressive or whose diagnosis is less than 5 years old - immunodeficiency: - of therapeutic origin (solid organ transplantation or transplant of hematopoietic stem cells, anticancer chemotherapy, immunosuppressive treatment, corticosteroid therapy> 15 mg / day equivalent to prednisone price for at least 2 months); - or hiv infection and last known cd4 count <200 / mm3 - history of pulmonary embolism and / or proximal deep vein thrombosis - asthma under inhaled corticosteroid therapy - paired sleep apnea syndrome - peripheral arterial disease of the lower limbs stage ii and above - another risk factor presented, according to the list defined by the french high council of public health - or presence of at least 3 comorbidities, according to the rapid responses to covid-19 from the french high council of public health. - patient with nasopharyngeal swab (antigenic test, rt-pcr, or other has-validated swabs to come) : - in case of positive test (antigenic test, rt-pcr, other), patient with at least 1 symptom at the time of testing: - in case of negative antigenic or other test or ongoing or uninterpretable rt-pcr test, the patient must present at least 3 of the 11 symptoms of covid-19 dating back no more than 4 days as defined below and notion of contact (with a certain or probable covid+ patient) dating back less than 10 days: fever > 37,5°c since 3 days cough sore throat/cold headache anosmia, dysgeusia myalgias, arthralgias, bone pain respiratory difficulties (feeling of dyspnea at rest) chest pain (sternal) digestive complaints (diarrhea, nausea, vomiting) tachycardia (palpitation) conjunctivitis (red eyes) - no seriousness signs during the consultation and for at least 72 hours. - patient able to understand the procedure and follow it and have tools for a video-consultation. - affiliation to the social security system. - voluntary to participate to the study, informed consent form signed after appropriate information

inclusion criteria: - age over 60 years old. - patient with at least 3 of the symptoms of covid-19 encountered among the 11 below dating from a maximum of 4 days defined below : 1. fever > 37.5 c for at least 3 days 2. cough 3. sore throat/cold 4. headache 5. anosmia, dysgeusia 6. myalgias, arthralgias, bone pain 7. respiratory difficulties (feeling dyspnea at rest) 8. chest pain (sternal) 9. digestive complaints (diarrhea, nausea, vomiting) 10. tachycardia (palpitation) 11. conjunctivitis (red eyes) - patient who has taken a naso-pharyngeal sample (antigenic test, rt-pcr, rt-lamp or other samples validated by the upcoming has) in the case of a negative test, the concept of contage (with a certain or probable covid patient) dates back less than 10 days. - no seriousness signs during the consultation and for at least 72 hours. - patient able to understand the procedure and follow it and have tools for a video-consultation. - affiliation to the social security system. - voluntary to participate to the study, informed consent form signed after appropriate information

inclusion criteria: - age over 60 years old. - patient with at least 3 of the symptoms of covid-19 encountered among the 11 below dating from a maximum of 4 days defined below : 1. fever > 37.5 c for at least 3 days 2. cough 3. sore throat/cold 4. headache 5. anosmia, dysgeusia 6. myalgias, arthralgias, bone pain 7. respiratory difficulties (feeling dyspnea at rest) 8. chest pain (sternal) 9. digestive complaints (diarrhea, nausea, vomiting) 10. tachycardia (palpitation) 11. conjunctivitis (red eyes) - patient who has taken a naso-pharyngeal sample (antigenic test, rt-pcr, rt-lamp or other samples validated by the upcoming has) in the case of a negative test, the concept of contage (with a certain or probable covid patient) dates back less than 10 days. - no seriousness signs during the consultation and for at least 72 hours. - patient able to understand the procedure and follow it and have tools for a video-consultation. - affiliation to the social security system. - voluntary to participate to the study, informed consent form signed after appropriate information