Yellow Fever Immune Response at Single Cell Resolution

Inclusion Criteria: * Male or female between the ages of 18 and 59 years old * Volunteers who have not received a vaccination within 30 days of the YFV and do not anticipate to receive a vaccination within 30 days * Volunteers who are seeking the YFV for either travel reasons or occupational risk * Volunteers willing to undergo one screening visit, one visit to receive the YFV, and four post-vaccination visits * Volunteers without medical conditions who are willing to give blood once for the development of the inDrop technique Exclusion Criteria: * Male or females under 18 or over 59 years of age * Volunteers who received other vaccination less than 30 days prior to receiving the YFV * Volunteers with acute or febrile disease * Volunteers unable to return for the post vaccination follow-up visits * Volunteers with an allergy to eggs, chicken proteins, gelatin, or other components of the Yellow Fever vaccine * Participation in another clinical study of an investigational product currently or within the past 90 days, or expected participation during this study * Is pregnant or lactating * Volunteers with a history of yellow fever vaccination and/or infection * Volunteers with a history of viral hepatitis and/or non-viral liver disease * In the opinion of the investigators, the volunteer is unlikely to comply with the study protocol * Immunosuppressed individuals as a result of cancer, transplantation, and or primary immunodeficiency * Immunosuppressed individuals as a result…