Chronic hypersensitivity pneumonitis (CHP) remains a diagnostic challenge. The process of collecting and extracting serum and droppings from causative animals for the inhalation challenge test is complicated and the risk of inducing disease progression exists.

中文翻译：

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使用鸽蛋治疗慢性过敏性肺炎的吸入激发试验

慢性过敏性肺炎 (CHP) 仍然是诊断方面的挑战。用于吸入激发试验的致病动物血清和粪便的收集和提取过程复杂，存在诱发疾病进展的风险。