In June 2004, the French syndromic surveillance system based on the ED has been implemented by the French institute for public health surveillance (InVS), starting with 23 ED. In August 2014, about 600 ED (40,000 daily attendances) are included in the Oscour network, recording 80% of the national total attendances.
Asthma is one of the about 60 syndromic indicators monitored each day and followed all over the year.