NeisseriaceaeMoraxella (Branhamella) catarrhalisMoraxellaBronchial DiseasesNeisseriaBronchopulmonary DysplasiaPseudomonas InfectionsNeisseriaceae InfectionsMoraxella (Moraxella) bovisMoraxellaceae InfectionsAspergillosis, Allergic BronchopulmonaryAnthracosilicosisRespiratory Tract InfectionsHaemophilus influenzaeTracheitisCefmetazoleBacterial Infectionsbeta-LactamasesClavulanic AcidsCeftizoximeNeisseria gonorrhoeaeBacteriologyAnti-Bacterial AgentsSputumTrimethoprimMicrobial Sensitivity TestsAmpicillinKeratoconjunctivitis, InfectiousClavulanic AcidGram-Negative Aerobic BacteriaBacteriaBronchopulmonary SequestrationCephalosporinsBacteriological TechniquesAmoxicillinBacterial Outer Membrane ProteinsInfant, PrematureInfant, NewbornCulture MediaHaemophilus InfectionsCefiximeInfant, Very Low Birth WeightOtitis MediaStreptococcus pneumoniaeAspergillus fumigatusNasopharynxLungAntibodies, BacterialGram-Negative BacteriaGram-Positive BacteriaInfant, Premature, DiseasesHyperoxiaRespiratory Distress Syndrome, NewbornDrug Resistance, Microbial