The findings could explain why being overweight or obese increases asthma risk, researchers say.
Public Health Wales says it is investigating at least 28 possible cases of the virus.
The technology is the same as that used by engineers to listen for faults in bridges.
People should not make health decisions based on genetic tests they do at home, experts warn.
The local authority has apologised for the "mistake" which led to a man's care being reduced.
Mobile clinics and evening and weekend opening could help increase uptake of NHS screening programmes.
Each year hundreds of young UK children end up in hospital with severe but avoidable coffee and tea scalds, like Archie.
Discovery of mutation 50,000 years ago could help in the fight against malaria.
Hospital bosses in the UK had tried to block attempts to move Tafida Raqeeb to the hospital in Genoa.
Jenny Evans is fed intravenously, but says a lack of deliveries left her without essential nutrition.