空ㄎㄨㄥkōng窗ㄔㄨㄤchuāng期ㄑㄧˊqí

感染病毒後，到出現可以被檢驗出抗體的期間。由英語 window period翻譯得名。

英window period (time between infection and the appearance of detectable antibodies), period during which sth is lacking (boyfriend or girlfriend, work, revenue, production of a commodity etc), lull, hiatus