Healthy Volunteers Needed for Influenza and Zika Research

* INCLUSION CRITERIA: 1. Greater than or equal to 18 and less than or equal to 65 years old, and have no significant health abnormalities 2. Willing to consider taking part in a future LID Clinical Studies Unit healthy volunteer study 3. A female participant is eligible for this study if she is any of the following: * Of non-childbearing potential (i.e., women who have had a hysterectomy or tubal ligation or are post-menopausal, as defined by no menses in greater than or equal to 1 year) * Of childbearing potential but agrees to practice effective contraception or abstinence (from heterosexual sex) for 4 weeks prior to enrolling into a spceific study and during the study. NOTE: Acceptable methods of contraception may include one or more of the following: 1) male partner who is sterile prior to the female participant's entry into the study and is the sole sexual partner for the female participant; 2) implants of levonorgestrel; 3) injectable progestogen;, 4) an intrauterine device with a documented failure rate of less than 1percent; 5) oral contraceptives; or 6) double barrier methods including diaphragm or condom with a spermicide. 4\. Willing to have samples stored for future research EXCLUSION CRITERIA: 1. Self-reported history of any significant medical condition including but not limited to: * Chronic pulmonary disease (such as asthma, emphysema) * Chronic cardiovascular disease (cardiomyopathy, congestive heart failure, cardiac surgery, ischemic heart disease, known anatomic defects) * Chronic medical conditions requiring close medical follow-up or hospitalization during the past 5 years (diabetes mellitus, renal dysfunction, hemoglobinopathies) * Immunosuppression or cancer * Neurological and neuro-developmental conditions (e.g., cerebral palsy, epilepsy, stroke, seizures) * Drug and/or alcohol dependency and/or abuse 2. Any condition that, in the judgment of the Principal Investigator, is a contraindication to protocol participation or impairs the volunteer s ability to give informed consent