Aedes albopictus: a potential problem in France

Area of Science:

• Medical Entomology
• Invasive Species Biology
• Public Health

Background:

• Aedes albopictus, an invasive mosquito species of Asian origin, has rapidly established itself across multiple continents, including Europe.
• International trade, particularly in used tires, facilitates its global dissemination, creating ideal breeding sites in tire stocks.
• The mosquito's presence in Italy and its tolerance for cooler temperatures pose a threat to neighboring Mediterranean regions, including southern France.

Purpose of the Study:

• To highlight the invasive spread and public health risks associated with Aedes albopictus in Europe.
• To emphasize the potential for Aedes albopictus to transmit various arboviruses and filarial infections.
• To advocate for the implementation of entomological surveillance in threatened areas.

Main Methods:

• Review of Aedes albopictus distribution and spread patterns.
• Assessment of Aedes albopictus's vector competence for arboviruses and filarial parasites.
• Analysis of climatic suitability for Aedes albopictus establishment in new regions.

Main Results:

• Aedes albopictus is established in Italy and poses a significant risk to Southern France due to suitable climatic conditions.
• The species demonstrates tolerance to low temperatures, enabling expansion into areas previously inaccessible to similar vectors.
• Aedes albopictus is a competent vector for dengue viruses and other arboviruses, with potential for vertical transmission.

Conclusions:

• The introduction of Aedes albopictus into France could lead to increased transmission of existing and novel viral and filarial diseases.
• Urgent need for permanent entomological surveillance in threatened areas to detect and rapidly eliminate Aedes albopictus populations.
• Proactive monitoring is essential to mitigate the public health impact of this invasive mosquito vector.