Figure2: Lung ultrasound findings of severe pneumonia in neonates: a. Pseudomonas aeruginosa Pneumonia (nosocomial pneumonia); gestational age, 28 wk plus 3 d; b. Streptococcus pneumonia (congenital pneumonia); gestational age, 41 wk plus 3 d; c. Pneumonia infected by Staphylococcus aureus and Escherichia coli (nosocomial pneumonia); gestational age, 28 wk; d. Respiratory syncytial virus pneumonia (community-acquired pneumonia); gestational age, 40 wk; e. Chlamydia trachomatis pneumonia (community-acquired pneumonia); gestational age, 38 wk plus 2 d; f. Candida albicans pneumonia (nosocomial pneumonia) gestational age, 27 wk plus 6 d.