English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Background    Aedes aegypti  and  Ae. albopictus  are the major epidemic vectors of several arbovirus diseases such as yellow fever, dengue, Zika and chikungunya worldwide. Both  Aedes  vectors are presents in Cameroon; however, knowledge on the dynamic of the distribution of these species across cities and their resistance profile to insecticide are limited. Here, we assessed the current distribution of  Ae. aegypti  and  Ae. albopictus  in Yaoundé, the Capital City, established the resistance profile to insecticides and explored the resistance mechanisms involved.    Methods  Immature stages of  Aedes  were sampled in several breeding sites in December 2015 (dry season) and June 2016 (rainy season) in three central neighborhoods and four peripheral neighborhoods and reared to adult stage. The G0 adults were used for molecular identification and genotyping of F1534C mutation in  Ae. aegypti . Bioassays and piperonyl butoxide (PBO) assays were carried out according to WHO guidelines.    Results  Analysis revealed that both species  Ae. aegypti  and  Ae. albopictus  are present in all prospected sites in Yaounde. However, in the dry season  Ae. aegypti  is most abundant in neighborhoods located in downtown. In contrast,  Ae. albopictus  was found most prevalent in suburbs whatever the season and in downtown during the rainy season. Bioassay analysis showed that both  Ae. aegypti  and  Ae. albopictus , are resistant to 0.05% deltamethrin, 0.1% bendiocarb and 4% dichlorodiphenyltrichloroethane (DDT). A decreased of susceptibility to 0.75% permethrin and a full susceptibility to malathion 5% was observed. The mortality rate was increased after pre-exposure to synergist PBO. None of  Ae. aegypti  assayed revealed the presence of F1534C mutation.    Conclusion  These findings are useful to planning vector control programme against arbovirus vectors in Cameroon and can be used as baseline in Africa where data on  Aedes  resistance is very scarce to plan further works.    Electronic supplementary material  The online version of this article (10.1186/s13071-017-2408-x) contains supplementary material, which is available to authorized users.

parasites and vectors

Temporal distribution and insecticide resistance profile of two major arbovirus vectors Aedes aegypti and Aedes albopictus in Yaoundé, the capital city of Cameroon