inclusion criteria: 1. individuals aged 18 ≥, male or female, not infected with sars-cov-2 2. agreement to participate in the study by signing the free informed consent (fic) 3. not being pregnant (in case of women able to become pregnant) 4. have not received a specific vaccine against covid-19 or, if vaccinated against sars-cov-2, have received the complete immunization schedule only with vaccines approved by anvisa and implemented by the national immunization program, (including the second dose) within a minimum of 15 days prior to the date of inclusion in the study 5. if the participant have not received a specific vaccine against covid-19 approved by anvisa, be aware and agree to be able to receive them only 15 days after the intervention proposed in this study

inclusion criteria: 1. individuals aged 18 ≥, male or female, not infected with sars-cov-2 2. agreement to participate in the study by signing the free informed consent (fic) 3. not being pregnant (in case of women able to become pregnant) 4. have not received a specific vaccine against covid-19 or, if vaccinated against sars-cov-2, have received the complete immunization schedule only with vaccines approved by anvisa and implemented by the national immunization program, (including the second dose) within a minimum of 15 days prior to the date of inclusion in the study 5. if the participant have not received a specific vaccine against covid-19 approved by anvisa, be aware and agree to be able to receive them only 15 days after the intervention proposed in this study

inclusion criteria: individuals aged 18 ≥, male or female, not infected with sars-cov-2 agreement to participate in the study by signing the free informed consent (fic) not being pregnant (in case of women able to become pregnant) have not received a specific vaccine against covid-19 or, if vaccinated against sars-cov-2, have received the complete immunization schedule only with vaccines approved by anvisa and implemented by the national immunization program, (including the second dose) within a minimum of 15 days prior to the date of inclusion in the study if the participant have not received a specific vaccine against covid-19 approved by anvisa, be aware and agree to be able to receive them only 15 days after the intervention proposed in this study

inclusion criteria: individuals aged 18 ≥, male or female, not infected with sars-cov-2 agreement to participate in the study by signing the free informed consent (fic) not being pregnant (in case of women able to become pregnant) have not received a specific vaccine against covid-19 or, if vaccinated against sars-cov-2, have received the complete immunization schedule only with vaccines approved by anvisa and implemented by the national immunization program, (including the second dose) within a minimum of 15 days prior to the date of inclusion in the study if the participant have not received a specific vaccine against covid-19 approved by anvisa, be aware and agree to be able to receive them only 15 days after the intervention proposed in this study

inclusion criteria: individuals aged 18 ≥, male or female, not infected with sars-cov-2 agreement to participate in the study by signing the free informed consent (fic) not being pregnant (in case of women able to become pregnant)

inclusion criteria: individuals aged 18 ≥, male or female, not infected with sars-cov-2 agreement to participate in the study by signing the free informed consent (fic) not being pregnant (in case of women able to become pregnant)

inclusion criteria: 1. individuals aged 18 ≥, male or female, not infected with sars-cov-2 2. agreement to participate in the study by signing the free informed consent (fic) 3. not being pregnant (in case of women able to become pregnant)

inclusion criteria: 1. individuals aged 18 ≥, male or female, not infected with sars-cov-2 2. agreement to participate in the study by signing the free informed consent (fic) 3. not being pregnant (in case of women able to become pregnant)