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Table 2 Summary of entomological and epidemiological data according to regions before and after LLINs scale-up

From: Review of malaria situation in Cameroon: technical viewpoint on challenges and prospects for disease elimination

Region Before LLINs scale-up After LLINs scale-up Transmission pattern Main vector References
EIR Epidemiological data (%) EIR Epidemiological datab (%)
Far North 6.0–20.0 ib/p/m 8.5–40.8b 6.0–20.0 ib/p/m 7.3–9.2b Seasonal An. arabiensis [42,43,44,45,46,47]
North 2.7–36.5 ib/p/m 6.5–30.7a 24.5–60.0 ib/p/m 28.6–35c Seasonal An. arabiensis; An. gambiae (s.s.); An. funestus [46, 49,50,51,52,53]
Adamaoua 100 ib/p/yr 17.5b   8.1–10.6b Perennial with high intensity An. gambiae (s.s.); An. coluzzii; An. funestus [55,56,57,58,59]
North-West and West 62.8–90.5 ib/p/yr 25.0–53.2a 2.2–11.0 ib/p/yr 9.3–22.4a Perennial with low intensity An. Gambiae (s.s.); An. funestus [8, 58, 60,61,62,63,64]
Littoral, South-West, Centre, South and East 149.0–287.0 ib/p/yr 35.0–85.4a 0.7–1.4 ib/p/m 9.0–56.2a Perennial with high intensity An. gambiae (s.s.); An. coluzzii; An. funestus; An. moucheti; An. nili [18, 44, 49, 58, 64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95]
Yaoundé and Douala 3.0–33.0 ib/p/yr 35.0a 0–90.0 ib/p/yr 35.0b Seasonal An. gambiae (s.s.); An. coluzzii [66, 96,97,98,99,100,101,102,103]
  1. aPrevalence of malaria parasite in asymptomatic children of 1 to 15 years
  2. bPrevalence of malaria parasite in asymptomatic children of 2 to 9 years
  3. cPrevalence of malaria parasite in asymptomatic children of 6 months to 5 years-old
  4. Abbreviations: EIR, entomological inoculation rate; ib/p/m, infected bites per person per month; ib/p/yr, infected bites per person per year