Proof-of-concept trial to assess the safety and tolerability of intranasal administration of a male donor memory T lymphocyte solution in females aged between 18 - 55 years of age.

Inclusion Criteria:

• Female subjects between 18 - 55 years of age.
• Participants are willing and able to comply with all scheduled visits, treatment plan, laboratory tests, lifestyle considerations, and other study procedures.
• Patients with the ability to comprehend and sign the informed consent.
• Written informed consent obtained prior to any screening procedures.
• Subjects in good health with no baseline disease of any kind.

Exclusion Criteria:

• Participants are not willing or able to comply with either: all scheduled visits, treatment plan, laboratory tests, lifestyle considerations, or other study procedures.
• Participants who are currently under medical follow-up for any medical condition or who are regularly taking medication for any condition.
• Subject has experienced symptoms consistent with a respiratory infection within the 7 days prior to the administration of the investigational treatment.
• Have a known history of human immunodeficiency virus infection, Hepatitis B or Hepatitis C; testing is not required in the absence of prior documentation or known history.
• Have a known history of drug substance abuse.
• Pregnant or breastfeeding women, where pregnancy is defined as the state of a female after conception and until the termination of gestation.
• Any other condition that, in the opinion if the Investigator, may interfere with the efficacy and/or safety evaluation of the trial.
• Any condition or situation precluding or interfering with the compliance with the protocol.
• Participant is currently enrolled or has enrolled in a clinical trial three months prior to inclusion in the current study.