inclusion criteria: individuals who: 1. are able to provide consent 2. agree to comply with all study visits and procedures 3. are of childbearing potential and sexually active must be willing to adhere to contraceptive requirements 4. are male or female ≥18 years of age (or, for phase 1, 18 to \< 60 years of age) 5. are at higher risk of developing covid-19 based on where they work or live

inclusion criteria: individuals who: 1. are able to provide consent 2. agree to comply with all study visits and procedures 3. are of childbearing potential and sexually active must be willing to adhere to contraceptive requirements 4. are male or female ≥18 years of age (or, for phase 1, 18 to \< 60 years of age) 5. are at higher risk of developing covid-19 based on where they work or live

inclusion criteria: individuals who: are able to provide consent agree to comply with all study visits and procedures are of childbearing potential and sexually active must be willing to adhere to contraceptive requirements are male or female ≥18 years of age (or, for phase 1, 18 to < 60 years of age) are at higher risk of developing covid-19 based on where they work or live

inclusion criteria: individuals who: are able to provide consent agree to comply with all study visits and procedures are of childbearing potential and sexually active must be willing to adhere to contraceptive requirements are male or female ≥18 years of age (or, for phase 1, 18 to < 60 years of age) are at higher risk of developing covid-19 based on where they work or live

inclusion criteria: individuals who: are able to provide consent agree to comply with all study visits and procedures are sexually active and willing to adhere to contraceptive requirements are male or female ≥18 years of age (or, for phase 1, 18 to < 60 years of age) are at higher risk of developing covid-19 based on where they work or live

inclusion criteria: individuals who: are able to provide consent agree to comply with all study visits and procedures are sexually active and willing to adhere to contraceptive requirements are male or female ≥18 years of age (or, for phase 1, 18 to < 60 years of age) are at higher risk of developing covid-19 based on where they work or live

inclusion criteria: individuals who: 1. are able to provide consent 2. agree to comply with all study visits and procedures 3. are sexually active and willing to adhere to contraceptive requirements 4. are male or female ≥18 years of age (or, for phase 1, 18 to < 60 years of age) 5. are at higher risk of developing covid-19 based on where they work or live

inclusion criteria: individuals who: 1. are able to provide consent 2. agree to comply with all study visits and procedures 3. are sexually active and willing to adhere to contraceptive requirements 4. are male or female ≥18 years of age (or, for phase 1, 18 to < 60 years of age) 5. are at higher risk of developing covid-19 based on where they work or live