Demographic and environmental factors associated with the distribution of Aedes albopictus in Cameroon. Issue 1 (20th October 2022)

• Record Type: Journal Article
• Authors: Canelas, Tiago; Thomsen, Edward; Kamgang, Basile; Kelly‐Hope, Louise A.
• Is Part Of: Medical and veterinary entomology. Volume 37:Issue 1(2023)
• Page Start: 143
• Page End: 151
• Publication Date: 2022-10-20
• Subjects: Aedes -- Aedes albopictus -- Arbovirus -- Cameroon; Entomology -- Periodicals; Veterinary entomology -- Periodicals; Insects as carriers of disease -- Periodicals; 616.968
• DOI: 10.1111/mve.12619
• Languages: English
• ISSNs: 0269-283X

Abstract

Abstract: Aedes ‐transmitted arboviruses have spread globally due to the spread of Aedes aegypti and Aedes albopictus . Its distribution is associated with human and physical geography. However, these factors have not been quantified in Cameroon. Therefore, the aim was to develop an Ae . albopictus geo‐referenced database to examine the risk factors associated with the vector distribution in Cameroon. Data on the Ae . albopictus presence and absence were collated and mapped from studies in published scientific literature between 2000 and 2020. Publicly available earth observation data were used to assess human geography, land use and climate risk factors related to the vector distribution. A logistic binomial regression was conducted to identify the significant risk factors associated with Ae . albopictus distribution. In total, 111 data points were collated (presence = 87; absence = 24). Different data collection methods and sites hindered the spatiotemporal analysis. An increase of one wet month in a year increased the odds of Ae . albopictus presence by 5.6 times. One unit of peri‐urban area increased the odds by 1.3 times. Using publicly available demographic and environmental data to better understand the key determinants of mosquito distributions may facilitate appropriately targeted public health messages and vector control strategies. Abstract : There has been an introduction of Aedes albopictus over the last two decades from the southern region in the first decade to the northern region towards 2019. Aridness is the main environmental factor keeping Ae. albopictus outside the northern region of the country. The transition from rural to urban areas allows for a better environment for the Ae. albopictus .