In addition, it is highly likely that the categorical form of NDVI exhibits a positive trend with infection risk, which is consistent with a previous study conducted in South Korea of Clonorchis sinensis , another major species of liver flukes [ 21 ].
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Spatial-temporal risk of Opisthorchis felineus infection in Western Siberia and the Ural Region of Russian Federation: a joint Bayesian modelling study based on survey and surveillance data.
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The sentences
There was a decreasing trend in infection risk in the central part (e.g., the basin of the Ob River within the Khanty-Mansi Autonomous Okrug) until 2000, followed by an increasing trend up to 2010, and a gradual decreasing trend since then.