male or nonpregnant female adult ≥18 years of age at time of enrollment. patient (or legally authorized representative) provides informed consent prior to initiation of any study procedures. agrees to the collection of nasopharyngeal swabs for virology assessment. women of childbearing potential must agree to either abstinence or use at least 1 primary form of contraception at the time of screening and for 4 months after study drug dosing. enrollment within 72 hours of hospital admission.

male or nonpregnant female adult ≥18 years of age at time of enrollment. patient (or legally authorized representative) provides informed consent prior to initiation of any study procedures. agrees to the collection of nasopharyngeal swabs for virology assessment. women of childbearing potential must agree to either abstinence or use at least 1 primary form of contraception at the time of screening and for 4 months after study drug dosing. enrollment within 72 hours of hospital admission.

1. male or nonpregnant female adult ≥18 years of age at time of enrollment. 2. patient (or legally authorized representative) provides informed consent prior to initiation of any study procedures. 3. agrees to the collection of nasopharyngeal swabs for virology assessment. 4. women of childbearing potential must agree to either abstinence or use at least 1 primary form of contraception at the time of screening and for 4 months after study drug dosing. 5. enrollment within 72 hours of hospital admission.

1. male or nonpregnant female adult ≥18 years of age at time of enrollment. 2. patient (or legally authorized representative) provides informed consent prior to initiation of any study procedures. 3. agrees to the collection of nasopharyngeal swabs for virology assessment. 4. women of childbearing potential must agree to either abstinence or use at least 1 primary form of contraception at the time of screening and for 4 months after study drug dosing. 5. enrollment within 72 hours of hospital admission.