Volume 30, Number 4—April 2024
Research
Animal Exposure Model for Mapping Crimean-Congo Hemorrhagic Fever Virus Emergence Risk
Sara Baz-Flores, Débora Jiménez-Martín1, Alfonso Peralbo-Moreno1, Cesar Herraiz, David Cano-Terriza, Raúl Cuadrado-Matías, Ignacio García-Bocanegra, and Francisco Ruiz-Fons
Table 1
Set of explanatory predictors gathered for risk factor analyses used for mapping Crimean-Congo hemorrhagic fever virus emergence risk from animal exposure model
| Factor, predictor | Description, unit of measure | Average (range) |
|---|---|---|
| Host-related | ||
| boveq | Cattle and horse summed density, ind/ha | 0.08 (0–0.45) |
| peqrum | Small ruminant density, ind/ha | 0.51 (0.02–1.96) |
| rd | Red deer density, harvested ind/ha | 0.04 (0–0.48) |
| wb | Eurasian wild boar density, harvested ind/ha | 0.05 (0–0.24) |
| otung |
Other wild ungulate density, harvested ind/ha |
0.13 (0–0.45) |
| Bioclimatic | ||
| lstinv | Mean winter land surface temperature, °C | 15.77 (11.92–20.76) |
| lstver | Mean summer land surface temperature, °C | 39.61 (32.36–45.12) |
| lstanu | Mean annual land surface temperature, °C | 29.34 (23.01–33.60) |
| lstvarinv | Winter land surface temperature variation, °C | 25.03 (12.32–45.47) |
| lstvarver | Summer land surface temperature variation, °C | 21.06 (9.80–30.06) |
| lstvaranu | Annual land surface temperature variation, °C | 121.77 (64.69–185.28) |
| NDVIinv | Winter normalized difference vegetation index | 4,563.39 (1,969.59–7,002.13) |
| NDVIver | Summer normalized difference vegetation index | 3,053.56 (1,235.00–5,665.86) |
| NDVIanu | Annual normalized difference vegetation index | 3915.94 (1708.02–6546.01) |
| NDVIvarinv | Winter normalized difference vegetation index variation | 473,323.50 (95,507.99–2,331,259.00) |
| NDVIvarver | Summer normalized difference vegetation index variation | 126,977.60 (22,445.69–1,028,808.00) |
| NDVIvaranu |
Variance of the annual normalized difference vegetation index |
1,051,955.00 (207,897.60–3,747,242.00) |
| Land use-related | ||
| matdi | Proportion of sparse shrubland in the buffer, % | 0.11 (0–0.55) |
| matde | Proportion of dense shrubland in the buffer, % | 0.08 (0–0.43) |
| bos | Proportion of woodland in the buffer, % | 0.06 (0–0.41) |
*Boldface indicates variables selected for modeling after the descriptive analysis. ind/ha, individuals per hectare.
1These authors contributed equally to this article.
Page created: March 01, 2024
Page updated: March 20, 2024
Page reviewed: March 20, 2024
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