Highlights

• Since Week 40, influenza and influenza-like illness activity has remained low in the region’s emergency departments, as well as among SOS Médecins associations, the Sentinelles network, and the virology laboratory at Nancy University Hospital. Both nationally and across Europe, influenza activity remains low this week.

• In Lorraine, the increase in bronchiolitis activity observed over the past four weeks by emergency department physicians continues, approaching the trend seen during the 2013–2014 season. In week 50, 150 cases of bronchiolitis were recorded, with a hospitalization rate of 32%. This activity accounts for 17.6% of all diagnoses in children under 2 years of age. Regarding the SOS Médecins association in Meurthe-et-Moselle, the number of bronchiolitis diagnoses also increased in week 50, with this condition accounting for 15% of their cases among children under 2 years of age. This increase in activity was observed in most French regions except in Île-de-France and Nord, where the peak has already passed.

• According to the virology laboratory at Nancy University Hospital, the number of respiratory viruses detected continues to rise in week 50. The virus identified is almost exclusively respiratory syncytial virus (RSV).

• In Lorraine, activity related to gastroenteritis in the emergency departments of the OSCOUR® network and within the SOS Médecins association in Meurthe-et-Moselle remains stable compared to previous years, despite observed weekly variations. With 120 diagnoses made in week 50, this activity accounted for 1% of all diagnoses in emergency departments. Doctors from the SOS Médecins association in Meurthe-et-Moselle made 69 diagnoses of gastroenteritis and diarrhea, accounting for nearly 7% of all diagnoses.

• The number of positive test results for circulating enteric viruses remains stable according to data from the Nancy University Hospital.

• During week 50, two cases of carbon monoxide poisoning (suspected or confirmed) were reported in Lorraine.