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In order to better understand the current situation of malaria epidemic in Suzhou and provide scientific basis for formulating targeted strategies and measures to prevent the re transmission of malaria.
Statistical description of the prevalence and distribution characteristics of malaria cases reported in Suzhou City from 2005 to 2024, the comparison of rates or proportions was performed using the chi-square test or Fisher's exact test.
From 2005 to 2024, a total of 629 cases of malaria were reported in the city, including 456 domestic cases and 173 imported cases from abroad; Before 2011, the case reports were mainly domestic cases, and since 2012, all case reports have been imported cases from abroad and no secondary cases have occurred. The peak of domestic cases is concentrated from July to October in summer, while the seasonal characteristics of imported cases are not obvious, and the difference is statistically significant (χ2=110.335, P<0.05). The top three regions with the highest number of domestic cases are Kunshan, Changshu, and Gusu, while the top three regions with the highest number of imported cases are Zhangjiagang, Gusu, and Xiangcheng. The distribution differences between regions are statistically significant (χ2=144.831, P<0.05). The gender ratio of domestic cases is 1.49: 1, and the age of patients is mainly concentrated between 20-59 years old. There is no statistically significant difference in the gender ratio between patients in different age groups (0-19 years old, 20-39 years old, 40-59 years old, ≥60 years old, the same below)(χ2=2.044, P>0.05); The gender ratio of imported cases is 20.6: 1, and the age distribution is mainly concentrated between 20-59 years old. The number of male patients in each age group is higher than that of females, and the proportion of male patients in the 40-59 age group is the highest (98.77%), which is statistically significant compared with other age groups (χ2=9.918, P<0.05). The main categories of domestic case populations are migrant workers, laborers, and farmers; The main categories of imported cases are workers, farmers, domestic workers and unemployed individuals, and commercial services. The main species composition of domestic cases is Plasmodium vivax (379/456); The main species composition of imported cases is Plasmodium falciparum (125/173). The vast majority of imported cases come from African countries.
Although malaria has been eliminated in Suzhou, imported cases from abroad continue to occur sporadically, we should improve the diagnosis and treatment level of cases, strengthen epidemic monitoring and case management, and enhance the self-protection awareness of key populations against malaria.
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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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