inclusion criteria: aged 18 or over may be followed for the duration of the study obtaining free, informed and signed consent affiliated to a social security scheme or beneficiary of such a scheme (except ame) non-smoker and non-vaping (for former smokers or vapers: abstinent for at least 12 months)

inclusion criteria: aged 18 or over may be followed for the duration of the study obtaining free, informed and signed consent affiliated to a social security scheme or beneficiary of such a scheme (except ame) non-smoker and non-vaping (for former smokers or vapers: abstinent for at least 12 months)

inclusion criteria: 1. aged 18 or over 2. may be followed for the duration of the study 3. obtaining free, informed and signed consent 4. affiliated to a social security scheme or beneficiary of such a scheme (except ame) 5. non-smoker and non-vaping (for former smokers or vapers: abstinent for at least 12 months)

inclusion criteria: 1. aged 18 or over 2. may be followed for the duration of the study 3. obtaining free, informed and signed consent 4. affiliated to a social security scheme or beneficiary of such a scheme (except ame) 5. non-smoker and non-vaping (for former smokers or vapers: abstinent for at least 12 months)

inclusion criteria: 1. hospital staff in contact with patients 1. doctors, nurses, caregivers, physiotherapists, stretcher bearers, radio manipulators, etc. 2. active on health institution (not teleworking) for the duration of the study (health students are eligible if their internship covers the entire duration of the study) 3. can be followed for the duration of the study 2. aged 18 or over 3. obtaining free, informed and signed consent 4. affiliated to a social security scheme or beneficiary of such a scheme (except ame) 5. non-smoker and non-vaping (for former smokers or vapers: abstinent for at least 12 months)

inclusion criteria: 1. hospital staff in contact with patients 1. doctors, nurses, caregivers, physiotherapists, stretcher bearers, radio manipulators, etc. 2. active on health institution (not teleworking) for the duration of the study (health students are eligible if their internship covers the entire duration of the study) 3. can be followed for the duration of the study 2. aged 18 or over 3. obtaining free, informed and signed consent 4. affiliated to a social security scheme or beneficiary of such a scheme (except ame) 5. non-smoker and non-vaping (for former smokers or vapers: abstinent for at least 12 months)

inclusion criteria: 1. hospital staff in contact with patients 1. doctors, nurses, caregivers, physiotherapists, stretcher bearers, radio manipulators, etc. 2. active on the hospital site (not teleworking) for the duration of the study (health students are eligible if their internship covers the entire duration of the study) 3. can be followed for the duration of the study 2. aged 18 or over 3. obtaining free, informed and signed consent 4. affiliated to a social security scheme or beneficiary of such a scheme (except ame) 5. non-smoker and non-vaping (for former smokers or vapers: abstinent for at least 12 months)

inclusion criteria: 1. hospital staff in contact with patients 1. doctors, nurses, caregivers, physiotherapists, stretcher bearers, radio manipulators, etc. 2. active on the hospital site (not teleworking) for the duration of the study (health students are eligible if their internship covers the entire duration of the study) 3. can be followed for the duration of the study 2. aged 18 or over 3. obtaining free, informed and signed consent 4. affiliated to a social security scheme or beneficiary of such a scheme (except ame) 5. non-smoker and non-vaping (for former smokers or vapers: abstinent for at least 12 months)