Colonization of the newborn respiratory tract and its association with respiratory morbidity in the first 6 months of life: A prospective cohort study: Infant respiratory colonization
Document Type
Article
Publication Date
1-1-2022
Abstract
Objectives: We aimed to determine the association between newborn bacterial colonization and infant respiratory morbidity in the first 6 months of life. Methods: This prospective study included healthy newborn infants. Nasopharyngeal swabs performed within 72 hours of delivery were analyzed using polymerase chain reaction. We assessed cumulative respiratory morbidity of infants at 6 months. Results: A total of 426 mother-infant pairs were recruited. In 53.3 (n = 225) of newborns, Streptococcus pneumoniae (46) and Staphylococcus aureus (7.3) were isolated. None had Haemophilus influenzae nor Moraxella catarrhalis. At the age of 6 months, 50.7 of infants had experienced respiratory symptoms, 25 had unscheduled doctor visits, and 10 were treated with nebulizers. Colonization with S. pneumoniae was associated with reduced risk of any respiratory symptom (adjusted odds ratio aOR 0.39, 95% confidence interval CI 0.16, 0.50), unscheduled doctor visits (aOR 0.35; 95% CI 0.18, 0.67), and nebulizer treatment (aOR 0.23, 95% CI 0.07, 0.72) at 6 months. Pregnancy-induced hypertension was also associated with increased need for nebulizer treatment (aOR 9.11, 95% CI 1.43, 58.1). Conclusion: Colonization of the newborn respiratory tract occurred in 53% of infants. S. pneumoniae was the most common organism, and this was associated with a reduced risk for respiratory morbidity at 6 months of life. © 2022 The Author(s)
Keywords
Female, Haemophilus influenzae, Humans, Infant, Infant, Newborn, Moraxella catarrhalis, Morbidity, Nasopharynx, Pregnancy, Prospective Studies, Respiratory System, Streptococcus pneumoniae, ampicillin, cefalexin, cefuroxime, clavulanic acid, Article, bacterial colonization, cohort analysis, controlled study, coughing, demography, DNA purification, female, Haemophilus influenzae, human, infant, longitudinal study, major clinical study, Malaysia, maternal exposure, maternal hypertension, Moraxella catarrhalis, morbidity, mother child relation, nasopharyngeal swab, newborn, polymerase chain reaction, pregnancy diabetes mellitus, prospective study, respiratory tract disease, rhinorrhea, Staphylococcus aureus, Streptococcus pneumoniae, urinary tract infection, microbiology, Moraxella catarrhalis, morbidity, nasopharynx, pregnancy, respiratory system
Divisions
fac_med,paediatrics,Socialprevent
Funders
Malaysian Thoracic Society, Malaysia,Universiti Malaya,RK-003-2020
Publication Title
International Journal of Infectious Diseases
Volume
122
Publisher
Elsevier
Additional Information
Cited by: 0