at more risk from disease because of something, such as a health condition or medical treatment, that prevents the body's immune system from working as well as it should

Some fungal diseases have proved to be highly pathogenic in immunocompromised patients, such as those with AIDS. 一些真菌疾病已被证明对免疫力减弱的病人，如艾滋病患者，具有高度的致病性。

Good hygiene is particularly important if anyone in the house is older, immunocompromised, or a newborn. 如果家里有年龄较大者、免疫力低下者或新生儿，良好的卫生状况尤其重要。

people who are at more risk from disease because of something that prevents their body's immune system from working as well as it should

Groups at highest risk include the elderly, the immunocompromised, and the critically ill. 风险最高的群体包括老年人、免疫力减弱者和危重病人。