Key Points COVID-19 In the Grand Est region, the number of new cases rose slightly in week 42 of 2021 (2,311 compared to 1,953 in week 41 of 2021), while the number of people tested...

Key Points COVID-19 Slight increase in viral circulation at the regional level Stabilization of active patient lists for those admitted to general wards and intensive...

Key points Bronchiolitis In the Nouvelle-Aquitaine region: second week of the outbreak, rising indicators. The bronchiolitis outbreak, which began early in week 41 (October 11–17,...

Key Points In mainland France, the Île-de-France region reported the highest number of arbovirus cases, all of which were imported; since May 1, 2021, there have been 43 confirmed cases...

Key Points In Mayotte, flu outbreaks generally occur during the hot and humid season, between December and March. This year, surveillance data confirm relatively early circulation of...

The emergence of infectious disease outbreaks is the result of complex dynamics influenced both by environmental conditions conducive to the development and spread of infectious agents...

Whether microbiological or chemical, the sources of contamination in the water supply are varied and can have an impact on public health.

Whether caused by natural sources or human activity, water pollution can be microbiological (bacterial, viral, or parasitic) or chemical