Key Findings

• Since monitoring began in week 40, activity related to influenza and influenza-like illnesses has remained low, but a recent upward trend has been observed. In week 3, physicians in the emergency departments of the OSCOUR® network and the SOS Médecins associations made 7 and 83 diagnoses, respectively. This increase in activity is affecting the entire country.

• Bronchiolitis activity among children under 2 years of age peaked in Week 52 for emergency departments in the OSCOUR® network and the SOS Médecins association. Since then, the epidemic has generally been declining in Alsace, although weekly variations are noted. In week 3, emergency departments and doctors from the SOS Médecins associations made 48 and 24 diagnoses of bronchiolitis, respectively. Among the diagnoses made in emergency departments, 29.2% required hospitalization. This condition accounts for 10.9% of emergency department activity among children under two years of age.

• According to the HUS virology laboratory, the number of respiratory viruses detected remains stable compared to previous weeks, with two main viruses identified: rhinovirus/enterovirus and respiratory syncytial virus (RSV).

• The number of weekly diagnoses of gastroenteritis and diarrhea is generally stable compared to previous weeks for the OSCOUR® network’s emergency departments: 122 diagnoses were made. Activity, however, appears to be on the rise among doctors in the SOS Médecins associations, with 338 diagnoses in week 3. This activity is similar to that observed during the same period in previous years.

• Rotavirus was the most frequently identified enteric virus by the HUS virology laboratory in Week 2.

• During Week 3, there were no reported cases of carbon monoxide poisoning (suspected or confirmed) in Alsace.