Prospective Cohort Study to Describe the Clinical Characteristics of COVID-19, the Acquired Immune Response and the Biological and Clinical Parameters of Patients Followed in Oncology by the Saint-Joseph Hospital Group for a Period of 6 Months During the COVID-19 Pandemic

Prior to conducting any of the screening tests, the Investigator or his designee will explain the trial fully to the prospective patient and provide him with a copy of the Patient Information Leaflet/Informed Consent Form.

If the patient is willing to participate to the trial, his given oral, free, informed and express consent will be collected and traced in his medical file.

The screening questionnaire will be completed. The patient's suitability for the trial will be confirmed by the inclusion/exclusion criteria .

Following completion of the Baseline Questionnaire, patients will receive the Daily Questionnaire. This is designed to assess if they have developed symptoms associated with COVID-19 infection.

If a participant responds that they are not feeling well, a series of follow-up questions will be asked regarding what symptoms they are currently experiencing.

The Daily Questionnaire will be asked of patients every day throughout the Observation Period of 6 months.

At the end of the Observation Period, all patients will complete a series of questionnaires relating to the conduct of the study and tools employed.

Inclusion criteria

• Patient over 18 years of age
• Patient followed in the medical oncology department of Paris Saint-Joseph Hospital Paris in France
• Patient Having regular access to smartphone and internet sufficient to support study demands
• French-speaking patient
• Affiliation to the social security network
• Willing and able to provide given oral, free, informed and express consent

Exclusion criteria

• Patients unable or unwilling to perform all requested study tasks
• Patient under tutorship or curatorship
• Patient deprived of liberty
• Pregnant or lactating patient