Safety & Efficacy of an Antibacterial Protein Molecule Applied Topically to the Nostrils of Volunteers and Patients

Inclusion Criteria: * Healthy human volunteer * Any patient clinically stable who are nasal carrier of S. aureus or MRSA including Chronic Kidney disease patients stable on dialysis Exclusion Criteria: * Presence of active systemic bacterial infection of any nature not cured at least 4 weeks before enrollment. * Systemic or intra-nasal anti-bacterial treatment during four week period before enrollment * Pregnancy, breast feeding during the study duration * Participation in any other intervention study during the past three months