Patient description: A 42-year-old healthy woman came to the clinic to have her flu shot in early October. She works in a rehab center and has no underlying disease. It's her first time getting the vaccine this year. She is married for 5 years and uses barrier methods of contraception. Her menstrual cycle is irregular. She does not smoke. She is not on any medications. She exercises regularly for 30 minutes a day at least 5 days a week. She has no history of allergies to any food or drugs. Her past surgical history is significant for tonsillectomy and she is otherwise healthy.

Clinical trial eligibility criteria: eligible ages (years): 18.0-55.0,  Healthy Participants are overtly healthy as medical evaluation, including medical history, physical examination, laboratory tests, and cardiac monitoring Participants are stable non-smokers for at least 3 months preceding screening Male or female participants agree to be consistent with local regulations on contraception methods Female participants are not pregnant or breastfeeding, and at least one of the following condition applies Not a woman of childbearing potential (WOCBP) or If a WOCBP, use a highly effective contraceptive method (that is, with a failure rate of less than (<) 1 percent per year, preferably with low user dependency for the following time period Before the first dose of the study intervention, if using hormonal contraception Has completed at least one 4-week cycle of an oral contraception pill and either had or has begun her menses or Has used a depot contraceptive or extended-cycle oral contraceptive for least 28 days and has a documented negative pregnancy test using a highly sensitive assay and A barrier method  History or presence of clinically relevant respiratory, gastrointestinal, renal, hepatic, haematological, lymphatic, neurological, cardiovascular, psychiatric, musculoskeletal, genitourinary, immunological, dermatological, connective tissue diseases or disorders Prior history of cholecystectomy or splenectomy, and any clinically relevant surgery within 6 months prior to screening History of any malignancy History of chronic or recurrent acute infection or any bacterial, viral, parasitic or fungal infections within 30 days prior to screening and at any time between screening and admission, or hospitalization due to infection within 6 months prior to screening History of shingles within 12 months prior to screening History of drug hypersensitivity, ascertained or presumptive allergy/hypersensitivity to the active drug substance and/or formulation ingredients History of alcoholism or drug abuse within 2 years prior to screening, or evidence of such abuse as indicated by the laboratory assays conducted during screening History of residential exposure to tuberculosis, or a positive QuantiFERON® test within 4 weeks prior to screening Administration of live vaccines or live-attenuated virus vaccines within 3 months prior to screening Any condition, including findings in the laboratory tests, medical history, or other screening assessments, that in the opinion of the Investigator constitutes an inappropriate risk or a contraindication for participation in the study or that could interfere with the study's objectives, conduct, or evaluation