Table 1.

Major characteristics of the study sites

Characteristics	Malaria parasite transmission
	Intense and Perennial			Low and seasonal
Ecological zone	HF-M	HS	HF-B	HGS	SS
Region(s)	Southwest	Northwest	Centre, East	Adamawa	Far North
Town(s)	Buea, Limbe, Mamfe, Mutengene, Tiko	Bamenda	Bertoua, Yaounde	Meiganga	Mora
Number of Health facilities	16			5
Enrolment*	2,849a	108	149	181	86
Temperature (°C)	17–34	15–28	17–33	12–34	15–40
Season	Long rainy & short dry		Two rainy & two dry	Long rainy & short dry	Short rainy & long dry
Humidity (%)	82–87	56–86	48–86	78–83	49–80
Precipitation (mm)	3,033	2,400–3,000	1,357–1,540	1,500–1,533	610–760
Annual Rainfall (mm)	1,600–4,000	2,000–3,000	1,600–2,000	1,200–1,600	500–1,200
EIR	100			10

*Samples were enrolled from Health facilities (clinical samples) in all ecological zones; ^aIncludes 747 clinical and 2,102 community samples. EIR = Entomological Inoculation Rate, SS = Sudano-Sahelian, HGS = High Guinea Savannah, HF-B = Humid Forest with bimodal rainfall, HF-M = Humid Forest with monomodal rainfall, HS = Humid Savannah