Seasonal dynamics of Anopheles stephensi and its implications for mosquito detection and emergent malaria control in the Horn of Africa
Abstract
Invasion of the malaria vector Anopheles stephensi across sub-Saharan Africa poses a threat to disease control efforts, particularly in cities where malaria transmission has historically been low but where this invasive vector can thrive. We collate longitudinal catch data to systematically characterize the species' seasonal dynamics in areas at risk of invasion, which is necessary to guide surveillance and control activities. An. stephensi's temporal abundance is highly variable and, in contrast to dominant vectors across Africa, poorly predicted by patterns of rainfall, instead being shaped by temperature and patterns of land use. This variation has material consequences for effective control of this invasive vector and highlights an urgent need for longitudinal entomological monitoring of the vector in its new environments.
- Publication:
-
Proceedings of the National Academy of Science
- Pub Date:
- February 2023
- DOI:
- 10.1073/pnas.2216142120
- Bibcode:
- 2023PNAS..12016142W