| passive smoking and nasopharyngeal colonization by streptococcus pneumoniae, haemophilus influenzae, and moraxella catarrhalis in daycare children. | exposure to tobacco smoke may be associated with higher risk of nasopharyngeal colonization and infection by streptococcus pneumoniae (sp), haemophilus influenzae (hi), and moraxella catarrhalis (mc). this study was done to determine the influence of passive smoking on s. pneumoniae, h. influenzae, and m. catarrhalis colonization rates among children. this is a prospective cross-sectional study. tertiary referral centers with accredited otorhinolaryngology-head and neck surgery and microbiology ... | 2011 | 22033573 |