News

• Hemorrhagic fever virus outbreak in West Africa: the outbreak continues to spread, with a new country affected (Nigeria). The WHO declares a Public Health Emergency of International Concern. The Ministry of Health updates its recommendations for the management of suspected cases returning from countries affected by the outbreak.

• Summary of results from enhanced surveillance of dengue and chikungunya: Since May 1, 125 suspected imported cases of chikungunya or dengue have been reported. Among these, 16 cases of dengue and 55 of chikungunya, all imported, have been confirmed.

• Non-specific indicators: continued high activity among SOS Médecins associations, moderate activity among SAMU emergency medical services; continued increase in emergency room visits by people aged 75 and older.

• Allergies: The National Aerobiological Surveillance Network (RNSA) reports an increase in ragweed pollen concentrations in the Lyon region over the course of the week, with an initial peak expected around August 15. It recommends that anyone allergic to these pollens begin treatment or consult a doctor. Several tools have been made available to facilitate greater participation in the fight against ragweed, including a smartphone app called Signalement Ambroisie (available for download on the Apple Store and Google Play) and a website (www.signalement-ambroisie.fr).