随着免疫受损人群的扩大，系统性真菌感染的发病率呈上升趋势。

The morbidity of systemic fungal infections has risen with the increase of immunocompromised population.

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未处理感染疥疮，尤其是婴幼儿、老年患者固定、艾滋病及其他免疫受损病人能够支持大量女性螨。

Untreated scabies infestations, especially in infants, immobilised geriatric patients, AIDS and other immunologically compromised patients can support huge Numbers of female mites.

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多数健康的儿童可通过自身的天然防御功能抵御感染，但免疫系统受损的儿童有形成肺炎的较高风险。

While most healthy children can fight the infection with their natural defences, children whose immune systems are compromised are at higher risk of developing pneumonia.

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