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Latent tuberculosis infection (LTBI) is a state of persistent immune response to stimulation by Mycobacterium tuberculosis antigens without evidence of clinically manifested active tuberculosis. Although LTBI is not contagious, about 5%-15% patients will develop active tuberculosis. Young age and immunosuppression are risk factors for the progression of LTBI to active tuberculosis. Due to the immature immune system, rheumatic disease and anti-rheumatic drugs, children with rheumatic disease are more susceptible to Mycobacterium tuberculosis, and LTBI is also prone to develop into active tuberculosis. China is still a country with a high burden of tuberculosis, more attentions should be paid to LTBI in rheumatic children. Screening for LTBI and preventive anti-tuberculosis treatment can reduce the occurrence of active tuberculosis and ensure the health of rheumatic children.
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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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