A Phase I Study to Evaluate Safety and Immunogenicity of AERAS 404 Administered in Adults

Inclusion Criteria: 1. Has completed written informed consent 2. Is male or female 3. Is age 18 through 45 years on Study Day 0 4. Had BCG vaccination at least 5 years ago, documented through medical history or presence of scar 5. Has general good health, confirmed by medical history and physical examination 6. Has a Body Mass Index (BMI) between 19 and 33 7. Agrees to complete a follow-up period of 182 days as required by the protocol 8. Females: Agrees to avoid pregnancy from 28 days prior to Study Day 0 through the follow-up period of 182 days. Women physically capable of pregnancy (not sterilized and still menstruating or within 1 year of the last menses) must agree to avoid pregnancy using an acceptable method 9. Agrees to avoid elective surgery for the duration of the study 10. Agrees to stay in contact with the investigative site for the study duration 11. Completed simultaneous enrollment in Aeras Vaccine Development Registry protocol Exclusion Criteria: 1. Acute illness on Study Day 0 2. Axillary temperature \>=37.5 degrees Celsius on Study Day 0 3. Evidence of significant active infection 4. Used immunosuppressive medication within 42 days before Study Day 0 5. Received immunoglobulin or blood products within 42 days before Study Day 0 6. Received any investigational drug therapy or investigational vaccine within 182 days before Study Day 0 7. Received inactivated influenza vaccine or inactivated tick-borne encephalitis vaccine within 14 days before entry into the study, or any other standard vaccine within 42 days before Study Day 0 8. Current chronic drug therapy including hormone replacement such as thyroxin, insulin 9. History or laboratory evidence of past, present or future possible immunodeficiency state which include any laboratory indication of HIV infection 10. History of allergic disease or reactions, including eczema 11. Previous medical history that may compromise safety of the subject in the study 12. Evidence of new acute illness that may compromise the safety of subject in the study 13. Evidence of chronic hepatitis 14. Inability to discontinue daily medications except contraceptives during study period 15. History of alcohol or drug abuse within past 2 years 16. Tobacco or cannabis smoking three or more days per week 17. Positive urine test for illicit drugs 18. History or evidence of any systemic disease on physical examination 19. History or evidence of active tuberculosis 20. Shared a residence within the last year with a individual on anti-tuberculosis treatment or with culture or smear positive tuberculosis 21. All females: Positive urine pregnancy test during screening 22. Abnormal (per local laboratory parameters) chemistry and hematology parameters 23. QuantiFERON®-TB Gold evidence of Mtb infection 24. Received a tuberculin skin test within 3 months (90 days) prior to Study Day 0