inclusion criteria: sign the informed consent before initiating the selection procedures. population: healthcare system workers working in contact with subjects potentially infected with sars-cov-2 people between 18 years and 59 years willingness to meet the requirements of the protocol. negative rapid serological test of sars-cov-2 the participant must agree to use effective contraceptive methods during the study period, in case of childbearing age.

inclusion criteria: sign the informed consent before initiating the selection procedures. population: healthcare system workers working in contact with subjects potentially infected with sars-cov-2 people between 18 years and 59 years willingness to meet the requirements of the protocol. negative rapid serological test of sars-cov-2 the participant must agree to use effective contraceptive methods during the study period, in case of childbearing age.

inclusion criteria: 1. sign the informed consent before initiating the selection procedures. 2. population: 1. healthcare system workers working in contact with subjects potentially infected with sars-cov-2 2. people between 18 years and 59 years 3. willingness to meet the requirements of the protocol. 4. negative rapid serological test of sars-cov-2 5. the participant must agree to use effective contraceptive methods during the study period, in case of childbearing age.

inclusion criteria: 1. sign the informed consent before initiating the selection procedures. 2. population: 1. healthcare system workers working in contact with subjects potentially infected with sars-cov-2 2. people between 18 years and 59 years 3. willingness to meet the requirements of the protocol. 4. negative rapid serological test of sars-cov-2 5. the participant must agree to use effective contraceptive methods during the study period, in case of childbearing age.