Table 4. The correspondence between the number of HFRS cases and the level of risk zoning in Weihe Basin.
Risk area | Number of HFRS cases | Proportion of total cases (%) | Area (km2) | Risk area ratio (%) | HFRS density (HFRS cases/km2) | Population (10,000 persons) |
---|---|---|---|---|---|---|
High-risk area | 5231 | 19.88 | 419 | 0.77 | 12.48 | 320 |
Medium-high-risk area | 7238 | 27.52 | 1974 | 3.62 | 3.67 | 268 |
Medium-risk area | 8540 | 32.46 | 9447 | 17.34 | 0.90 | 513 |
Medium-low-risk area | 4904 | 18.64 | 17783 | 32.64 | 0.28 | 708 |
Low-risk area | 394 | 1.5 | 24860 | 45.63 | 0.02 | 473 |