Study of Single Dose GHB16L2 Trivalent Influenza Vaccine in Healthy Adults

Inclusion Criteria:

* Healthy male and female volunteers, 18-60 years
* Seronegative for one or two of the applied vaccine strains
* Low antibody titres for H1N1v
* Written informed consent to participate in this study
* For female volunteers of childbearing potential, provision of a history and current use of reliable contraceptive practices

Exclusion Criteria:

* Acute febrile illness (\>37.3°C)
* Signs of acute or chronic upper or lower tract respiratory illnesses
* History of severe atopy
* Seasonal influenza vaccination in 2008/2009 and/or later seasons and/or pandemic influenza vaccination at any time
* Fever ≥38.0°C in the time period between the pre-screening visit and day 1
* Known increased tendency of nose bleeding
* Volunteers with clinically relevant abnormal paranasal anatomy
* Volunteers with clinically relevant abnormal laboratory values
* In female volunteers of childbearing potential, a positive urine pregnancy test
* Simultaneous treatment with immunosuppressive drugs incl. Corticosteroids (≥2 weeks) within 4 weeks prior to study medication application
* Clinically relevant history of renal, hepatic, GI, cardiovascular, haematological, skin, endocrine, neurological or immunological diseases
* History of leukaemia or cancer
* HIV or Hepatitis B or C seropositivity
* Volunteers who underwent rhino or sinus surgery, or surgery of another traumatic injury of the nose within 30 days prior to application of study medication
* Volunteers who have received antiviral drugs, treatment with immunoglobulins or blood transfusions, or an investigational drug within 4 weeks prior to study medication application
* Volunteers who have received anti-inflammatory drugs 2 days prior to study medication application
* Volunteers who are not likely to cope with the requirements of the study or with a significant physical or mental condition that may interfere with the completion of the study