This is not the first time researchers at Cardiff University have made the link between fungi and asthma. Previous research found that removing fungi from people's homes could help improve life for asthma sufferers.
Historically, the lungs were thought to be sterile. Our analysis found that there are large numbers of fungi present in healthy human lungs. The study also demonstrates that asthma patients have a large number of fungi in their lungs and that the species of fungi are quite different to those present in the lungs of healthy individuals
Establishing the presence of fungi in the lungs of patients with asthma could potentially open up a new field of research which brings together molecular techniques for detecting fungi and developing treatments for asthma.
More top news
It's not too bad out there tonight. A few showers over northern areas, but dry elsewhere with temperatures degrees milder than last night.
Traders across Wales have told ITV News the migrant crisis in Calais is having a 'devastating' impact on their business.
The Balmoral is back but for how long? Volunteers appeal for public support to keep her sailing the Bristol Channel.