Cost and quality of operational larviciding using drones and smartphone technology

Malaria Journal

Table 4 Simulated cost per km² covered, person protected per year by arm and cost-effectiveness of SIS versus conventional larviciding per case, death and DALY averted (US$)

Arm	Cost per unit	Mean cost (and 90% credible interval) US$
SIS	km² of land covered with intervention	739.44 (721.638 to 761.823)
SIS	Person protected per year (6 rounds of larviciding)	1.82 (1.776 to 1.875)^§ 3.69 (0.319 to 15.116)^§§
Conventional	km² of land covered with intervention	795.77 (744.39 to 859.05)
Conventional	Person protected per year (6 rounds of larviciding)	2.26 (2.120 to 2.446)^§ 3.94 (0.342 to 16.273)^§§
SIS v Conv	Incremental cost per km² of land covered with intervention	− 56.33 (− 121.97 to -0.976)
	Person protected* per year with 6 rounds of larviciding	− 0.278 (− 13.39 to 12.15)
	Case averted	1430.77 (-5,869.81 to 5,839.23)
	Death averted	357,438.15 (− 2,693,340.55 to 2,698,272.32)
	DALY averted (SIS v conventional)	6,209,51 (− 47,814.20 to 47,634.36)

^§Uses a fixed estimate based on actual number of people protected
^§§Uses a range of people protected based on population density per km² in rural areas from the 2021 Zanzibar census data
Uses ^§§ as above, i.e. the cost per km² covered with each type of SIS divided by population density per km² from Zanzibar for rural areas only. Including more densely populated urban areas would improve this substantially but we did not test drones in this type of area

ISSN: 1475-2875