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The epidemic situation of influenza from 2014 to 2023 in Huanggang City was analyzed to provide reference for prevention and control of influenza in Huanggang City.
The data of influenza online report, ILI monitoring data and etiological detection data in Huanggang City from 2014 to 2023 were collected and analyzed.
From 2014 to 2023, the annual incidence of influenza in Huanggang City ranged from 5.38/100,000 (2014) to 1,178.19/100,000 (2023), with a trend of first increasing (2014-2019), then decreasing (2020-2022), and reaching a peak in 2023.Retrospective spatiotemporal scanning analysis showed that the onset time was mainly concentrated in December of each year and January and February of the following year. In the epidemic season, Huangzhou, Luotian and Qichun were the main cluster areas of Class I and Class II. The ILI% value of each year in Huanggang City from 2014 to 2023 ranged from 4.41% to 13.17%, and the difference of ILI% each year was statistically significant (χ2=83 652.46,P<0.01), and the annual change trend was similar to that reported by influenza network.The positive rate of influenza virus in ILI case samples showed the characteristics of peak in winter and spring and small peak in summer, and H3N2, H1N1 and BBV were alternately or co-prevalent in each year and within each year.The analysis of correlation results between ILI% and positive rate of influenza virus showed that: except 2014-2016 and 2020-2022, the other 4 years showed positive correlation, and the P-value was less than 0.05,
The prevalence of influenza in Huanggang showed an increasing trend year by year, with obvious seasonal characteristics and temporal and spatial aggregation. The dominant strains, mainly H1N1, H3N2 and BV, alternated or co-circulated within the year and between different years.
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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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