TY - JOUR
T1 - Relationship of climate, geography, and geology to the incidence of rift valley fever in Kenya during the 2006-2007 outbreak
AU - Hightower, Allen
AU - Kinkade, Carl
AU - Nguku, Patrick M.
AU - Anyangu, Amwayi
AU - Mutonga, David
AU - Omolo, Jared
AU - Njenga, M. Kariuki
AU - Feikin, Daniel R.
AU - Schnabel, David
AU - Ombok, Maurice
AU - Breiman, Robert F.
PY - 2012/2
Y1 - 2012/2
N2 - We estimated Rift Valley fever (RVF) incidence as a function of geological, geographical, and climatological factors during the 2006-2007 RVF epidemic in Kenya. Location information was obtained for 214 of 340 (63%) confirmed and probable RVF cases that occurred during an outbreak from November 1, 2006 to February 28, 2007. Locations with subtypes of solonetz, calcisols, solonchaks, and planosols soil types were highly associated with RVF occurrence during the outbreak period. Increased rainfall and higher greenness measures before the outbreak were associated with increased risk. RVF was more likely to occur on plains, in densely bushed areas, at lower elevations, and in the Somalia acacia ecological zone. Cases occurred in three spatial temporal clusters that differed by the date of associated rainfall, soil type, and land usage.
AB - We estimated Rift Valley fever (RVF) incidence as a function of geological, geographical, and climatological factors during the 2006-2007 RVF epidemic in Kenya. Location information was obtained for 214 of 340 (63%) confirmed and probable RVF cases that occurred during an outbreak from November 1, 2006 to February 28, 2007. Locations with subtypes of solonetz, calcisols, solonchaks, and planosols soil types were highly associated with RVF occurrence during the outbreak period. Increased rainfall and higher greenness measures before the outbreak were associated with increased risk. RVF was more likely to occur on plains, in densely bushed areas, at lower elevations, and in the Somalia acacia ecological zone. Cases occurred in three spatial temporal clusters that differed by the date of associated rainfall, soil type, and land usage.
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U2 - 10.4269/ajtmh.2012.11-0450
DO - 10.4269/ajtmh.2012.11-0450
M3 - Article
C2 - 22302875
AN - SCOPUS:84857014778
SN - 0002-9637
VL - 86
SP - 373
EP - 380
JO - American Journal of Tropical Medicine and Hygiene
JF - American Journal of Tropical Medicine and Hygiene
IS - 2
ER -