I am following an infant at home with chronic severe bpd; he's 11 months old, 7.5 months corrected age, on oxygen 23-27% plus inhaled steroids. He has morning fever from about 7:30 AM to 10:00. Remission is spontaneous, peak ranges from 37.5 °C to 38.5 °C. There is no evidence whatsoever of infection (CRP is null, the infant is well, urinalysis etc etc). This has happened from about three months now, with small fluctuations: some days there is no fever, but mostly there is, We thought that in some way the fever could be linked to some dehydration, but it has persisted after stopping diuretics and increasing hydration. I've seen a similar picture in a few other bpd babies, but never so lasting.