The article describes seven indigenous cases of dengue fever in Niger, highlighting the underreporting and misdiagnosis of dengue as malaria in Africa. The authors emphasize the need for training healthcare staff to recognize and diagnose dengue fever and the importance of strong vector control measures to contain its spread. The authors acknowledge the medical staff and patients who participated in the study. They outline the contributions of various team members, including conceptualization, experiments, field investigations, formal analysis, writing, and review. Dr. Idé Amadou is a researcher at the Centre de Recherche Medicale et Sanitaire, focusing on field epidemiology, pediatrics, and health emergencies. The article reports a large-scale outbreak of Mycoplasma pneumoniae respiratory infections in Marseille, France, from 2023 to 2024. The outbreak affected 218 patients (0.8% of 26,449 tested), primarily children ≤15 years old. The high prevalence of co-infections with other respiratory viruses warrants a syndromic diagnostic strategy. The authors discuss the possible causes of the outbreak, including a new strain or a decline in immunity, and highlight the potential for human disease through respiratory or ocular exposure. The article describes a fatal infection in ferrets caused by ocular inoculation with a highly pathogenic avian influenza A(H5N1) virus. The virus transmitted to ferrets in direct contact, emphasizing the potential for human disease through respiratory or ocular exposure. The study highlights the expanding host range and geographic spread of these viruses, which have caused severe and fatal infections in both animals and humans.The article describes seven indigenous cases of dengue fever in Niger, highlighting the underreporting and misdiagnosis of dengue as malaria in Africa. The authors emphasize the need for training healthcare staff to recognize and diagnose dengue fever and the importance of strong vector control measures to contain its spread. The authors acknowledge the medical staff and patients who participated in the study. They outline the contributions of various team members, including conceptualization, experiments, field investigations, formal analysis, writing, and review. Dr. Idé Amadou is a researcher at the Centre de Recherche Medicale et Sanitaire, focusing on field epidemiology, pediatrics, and health emergencies. The article reports a large-scale outbreak of Mycoplasma pneumoniae respiratory infections in Marseille, France, from 2023 to 2024. The outbreak affected 218 patients (0.8% of 26,449 tested), primarily children ≤15 years old. The high prevalence of co-infections with other respiratory viruses warrants a syndromic diagnostic strategy. The authors discuss the possible causes of the outbreak, including a new strain or a decline in immunity, and highlight the potential for human disease through respiratory or ocular exposure. The article describes a fatal infection in ferrets caused by ocular inoculation with a highly pathogenic avian influenza A(H5N1) virus. The virus transmitted to ferrets in direct contact, emphasizing the potential for human disease through respiratory or ocular exposure. The study highlights the expanding host range and geographic spread of these viruses, which have caused severe and fatal infections in both animals and humans.