Nasal carriage of Staphylococcus aureus in children with grass pollen-induced allergic rhinitis and the effect of polyvalent mechanical bacterial lysate immunostimulation on carriage status: A randomized controlled trial.

Almost every second child with SAR is S. aureus nasal carrier. Sublingual administration of PMBL in children with grass pollen-induced AR did not affect S. aureus nasal colonization. Therefore, PMBL should not be used for the eradication of S. aureus from the nasal cavity.