what are the symptoms of pneumonia in newborns?
['Cough.', "Laboured breathing that makes the muscles under a child's rib cage draw inwards.", 'Vomiting.', 'Chest pain.', 'Abdominal pain.', 'Decreased activity.', 'Loss of appetite (older children) or poor feeding (infants)', 'In extreme cases, bluish or grey lips and fingernails.']