Table 1.

Description of study areas

Characteristic	Blantyre (urban and rural)	Chikwawa (rural)
Area, km2 [36]	2, 012	4, 755
Population [36]	1, 239, 648	518, 287
Elevation, m [37]	1, 001–1, 500	51–100
Temperature, °C (average: min–max) [38]	9.9–39.5	10–45.6
Rainfall, mm (average: min–max) [38]	0–142.7	0–86.4