inclusion criteria: - adults over 18 years of age. - demonstrate the capacity to understand and sign the informed consent document. - agree to comply with the study procedures and visits.

inclusion criteria: - adults over 18 years of age. - demonstrate the capacity to understand and sign the informed consent document. - agree to comply with the study procedures and visits.

inclusion criteria: - adults over 18 years of age. - health professionals who provide care to people with possible or confirmed covid-19. - demonstrate the capacity to understand and sign the informed consent document. - agree to comply with the study procedures and visits.

inclusion criteria: - adults over 18 years of age. - health professionals who provide care to people with possible or confirmed covid-19. - demonstrate the capacity to understand and sign the informed consent document. - agree to comply with the study procedures and visits.