Emergence of Indigenous Dengue Fever, Niger, October 2023.

Dengue fever is a growing worldwide public health concern. In mid-October 2023, multiple cases of uncommon febrile illness were reported among patients in Niamey, Niger. Fifteen samples were tested by using molecular methods, from which 7 (46.

First identification of Microsporidia MB in Anopheles coluzzii from Zinder City, Niger.

Background: Malaria, a disease transmitted by Anopheles mosquitoes, is a major public health problem causing millions of deaths worldwide, mostly among children under the age of 5 years. Biotechnological interventions targeting parasite-vector interactions have shown that the microsporidian symbiont Microsporidia MB has the potential to disrupt and block Plasmodium transmission.

Methods: A prospective cross-sectional survey was conducted in Zinder City (Zinder), Niger, from August to September 2022, using the CDC light trap technique to collect adult mosquitoes belonging to the Anopheles gambiae complex.

Plasmodium falciparum kelch13 polymorphisms identified after treatment failure with artemisinin-based combination therapy in Niger.

Background: Artemisinin-based combination therapy (ACT) is the most effective treatment for malaria, and has significantly reduced morbimortality. Polymorphisms associated with the Plasmodium falciparum Kelch gene (Pfkelch13) have been associated with delayed parasite clearance even with ACT treatment.

Methods: The Pfkelch13 gene was sequenced from P.

Countrywide insecticide resistance monitoring and first report of the presence of the L1014S knock down resistance in Niger, West Africa.

Background: Mass distribution of insecticide-treated nets (ITNs) is the principal malaria vector control strategy adopted by Niger. To better inform on the most appropriate ITN to distribute, the National Malaria Control Programme (NMCP) of Niger and its partners, conducted insecticide resistance monitoring in selected sites across the country.

Methods: The susceptibility of Anopheles gambiae sensu lato (s.

Distribution and relative densities of Aedes aegypti in Niger.

Its climate and environmental conditions put Niger at particularly high risk of the spread of Aedes mosquitoes, which can transmit arboviruses. In September 2016, the Republic of Niger reported its first outbreak of Rift Valley Fever (RVF) in the northern region of Tahoua, near the Mali border, particularly in the departments of Tchintabaraden, Tassara, and Abalak. The history of RVF has showed that epidemics and epizootics have a considerable socioeconomic impact in affected countries, such as Niger, whose populations are particularly concerned by livestock farming.