From: Epidemiology of East Coast fever (Theileria parva infection) in Kenya: past, present and the future
Region/Province | District | Prevalence (cattle ages sampled) | Annual incidence rate | Case-fatality rates | Epidemiological factors | References |
---|---|---|---|---|---|---|
Lake Victoria basin/ Nyanza region | Rusinga island | >70% | NA | NA | Region very suitable for the tick vector | [6] |
 | Rusinga island | NA | 22% | 21% |  | [7] |
 | Kisumu, Siaya and Bondo | 60% (4–18 months) | NA | NA |  | [8] |
Coastal lowlands/ Coast | Kaloleni/Kilifi | 22% - 85% (4–18 months) | NA | NA | Region very suitable for the tick vector | [9] |
Western Kenya highlands | Uasin Gishu | 60%a, 73%b | 32%a, 39%b | NA | Farm management practices influenced epidemiology | [10] |
Central highlands (Central Kenya) | Murang’a (AEZ: UM4*) | 72% (6–18 months) | 90% | 16% | AEZ suitability for tick vector differs, age, breed, grazing system | |
Western province | Busia district | 7% - 8%c | NA | NA | - | [13] |
Southern Rift Valley (Maasailand) | Trans Mara | ~ 100% <6 months | NA | 3% | Age | |
Eastern Province (Arid-semi arid region) | Mbeere District | All age categories 4% – 48% | NA | NA | AEZ suitability for tick vector differs, presence of vector tick on the farm, calf tick control frequency, herd size | [16] |
 | Machakos District | All age categories 60% | NA | NA | - | [17] |
Southern Rift Valley (Maasailand) | Kenya-Tanzania border | NA | NA | 30% to 60% | Precipitation levels | [18] |