Malaria vector feeding, peak biting time and resting place preference behaviors in line with Indoor based intervention tools and its implication: scenario from selected sentinel sites of Ethiopia

• DOI: 10.1016/j.heliyon.2022.e12178
• Publication Date: 2022-12-09T01:02:58Z
• Authors: Alemnesh Hailemar...; Abebe Asale Gutto; Abate Waldetensai; Araya Eukubay; Getachew Eticha B...; Solomon Kinde; Fekadu Gemechu; Yared Debebe; Mesfin Aklilu; Geremew Tasew; Fekadu Massebo; Abebe Teshome; Tilahun Kebede; Bedri Abdulatif; Achamyelesh Sisay; Hiwot Solomon; Eliningaya J. Kweka
• Keywords: Anopheles gambiae; Pyrethrum; Mosquito control

In Ethiopia, malaria incidence has significantly reduced in the past decade through combined use of conventional vector control approaches and treatment using antimalarial drugs. However, sustainability this achievement is threatened by shift biting resting behaviors emergence insecticide resistance primary vector. Therefore, continuous monitoring behaviour mosquitoes different sentinel sites crucial to design effective prevention methods local context. Entomological investigations were conducted three for five consecutive months during major transmission season. The species composition, population dynamics, behaviours vectors determined center disease (CDC) light trap, human landing catch (HLC), pyrethrum spray (PSC) Pitfall shelter collection (PFS). Accordingly, 10 households CDC, PSC, PFS 5 HLC from each site randomly enrolled mosquito collection. A total 8,297 anopheline collected sites, out which 4,525 (54.5 %) An. gambiae, s.l. 2,028 (24.4 pharoensis, 160 (1.9 funestus rest 1,584 (19 other anophelines (An. coustani, cinerus tenebrosus). No significant variation (P = 0.476) was observed between indoor (25.2/trap-night outdoor collections (20.1/trap-night). Six hundred seventy six (43.3%) gambiae (primary vector) 18:00 22:00 h. Biting activity declined 00:00 02:00 national program should pay close attention shifting behavior as feeding tendency could pose challenges intervention tools IRS LLINs.