asthma

Mathilde spent four hours in a chamber breathing dust

Road dust can be a big problem in the winter, especially in northern climes where the use of studded tyres is allowed. Researchers are now studying how the type of stone used in asphalt affects the amount and harmfulness of dusty particulate matter that gets kicked up as studded tyres chew into the asphalt.

Viruses that play hide and seek

Every year, two million children die of acute respiratory infections. Among the culprits are several different viruses, one of which your child almost certainly has had without you or the doctors ever knowing it.