Staphylococcus aureus, especially Methicillin-Resistant Staphylococcus aureus (MRSA), infections can be severe and even fatal.  Each year, thousands of patients acquire Staph infections annually while in hospital resulting in enormous suffering, amputations and loss of life. Studies throughout North America and the UK have demonstrated that patients who are carrying or are colonized with Staphylococcus aureus are at risk of self-infecting. Studies also have demonstrated that eliminating nasal carriage of Staphylococcus aureus significantly reduces the number of Staph infections and therefore must be considered a necessary strategy for the overall reduction of healthcare-associated infections.1,2

The nose, armpits, hand and groin are the major hotspots for MRSA colonization

MRSAid™ is an innovative, non-antibiotic therapy for nasal bacterial decolonization, based on Ondine Biomedical’s patented Photodisinfection technology.  MRSAid™ is a simple two step process designed to eliminate potentially harmful pathogens found in the nose, such as Staphylococcus aureus and Methicillin-Resistant Staphylococcus aureus (MRSA).  MRSAid™ treatment is intended  for use at hospital admittance, just prior to major surgery to reduce the risk of self-infection while the patient is immuno-compromised.

MRSAid™ consists of the application of a topical photosensitizer solution in the nasal passages of individuals colonized with pathogenic bacteria such as MRSA. This photosensitizer is subsequently activated locally using non-thermal, visible red light energy. The treatment is painless, does not lead to bacterial resistance, and can decolonize the nose of bacterial pathogens in a single several minute treatment.  MRSAid™ is the first non-antibiotic topical solution for directly treating bacteria in the nose, the primary reservoir in humans for MRSA colonization.

For more information about MRSAid™, please visit

  1. von Eiff et al. Nasal Carriage As A Source of Staphylococcus aureus Bacteremia. N Engl J Med 2001; 344:11-16
  2. Lowy et al. Staphyloccocus aureus Infections. N Engl J Med 1998; 339:520-532
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