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| Year | Tick to human transmission | Human to human transmission | Animal to human transmission | Environment to human transmission | Unclassified | Total (%) |
|---|---|---|---|---|---|---|
| 2018 | 37(45.67%) | 6(7.40%) | 20(24.69%) | 10(12.34%) | 8(9.9%) | 81(100%) |
| 2019 | 62(46.97%) | 3(2.27%) | 35(26.52%) | 22(16.67%) | 10(7.58%) | 132(100%) |
| 2020 | 109(33.64%) | 13(4.01%) | 95(29.32%) | 82(25.31%) | 25(7.72%) | 324(100%) |
