翻譯擂臺（６１）

Translation Contest 61

英譯中部分

People with selective IgA deficiency areasymptomatic， or have increased frequency ofinfections， particularly in the respiratory and diges-tive system， for example， sinusitis and urinary tractinfections. These infections are generally mild andwould not usually lead to an in-depth workup exceptwhen unusually frequent. When suspected， the diag-nosis can be confirmed by laboratory measurement ofIgA level in the blood. Patients have an increasedsusceptibility to pneumonia and recurrent episodes ofother respiratory infections and a higher risk of de-veloping autoimmune diseases in middle age.

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