 This information may help other babies in future.• TINN 2 (Treat Infection in Neonates 2) aims to carry out an evaluation of the antibiotic azithromycin for the treatment of infections in preterm and term neonates.• Detection of Genomic Structural Variations using Next Generation DNA Sequencing is a study that will examine potential benefits of a new technology called ‘next-generation DNA sequencing’ to detect changes in chromosomes.