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To analyze the spatial-temporal clustering of mumps during periods with different immunization strategies in Tai’an.
The immunization strategy for MuCV from 2009 to 2024 was divided into 1-dose period (2009-2013), 2-dose early period (2014-May 2020), and 2-dose later period (June 2020-2024). Mumps incidence data from 2009 to 2024 were obtained from the China Disease Control and Prevention Information System for descriptive epidemiological, trend analysis and spatial-temporal clustering analysis during different immunization strategy periods.
The annual average incidence rate of mumps in Tai’an from 2009 to 2024 showed a general downward trend during the three immunization periods (χ2trend=4 273.971, P<0.001), and there were statistically significant differences (χ2=4 977.100, P<0.001). The trend surface analysis showed that it increased first and then decreased from west to east during three immunization periods. From north to south, the rate decreased and then increased during the 1-dose period, whereas a generally downward trend was observed during the 2-dose period. The global spatial autocorrelation analysis showed that mumps exhibited significant spatial clustering (P<0.001) during three immunization periods. The local autocorrelation analysis showed that the "High-High" clusters were predominantly concentrated in the townships/subdistricts covered by Taishan District, Daiyue District, Mount Tai Scenic Area, and Ningyang County, while the "Low-Low" clusters were mainly distributed in those under Feicheng City and Xintai City during the three immunization periods. The spatiotemporal scanning analysis showed that the main clusters were predominantly located in townships/subdistricts covered by Ningyang County, Taishan District, Daiyue District, and the Mount Tai Scenic Area during the three immunization periods, and this was basically consistent with the "high-high" clusters identified by the local spatial autocorrelation analysis.
The incidence of mumps during different immunization strategy periods exhibited spatial-temporal clustering in Tai’an City. It is necessary to strengthen the surveillance and early warning for mumps in high-priority regions.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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