Offer of the infection symptom diagnostic glaze which it is possible, to discriminate the germ genus of type which differs at non invasive brief simply measurement and/or to image it can convert Offer of screening manner of the curative medicine of the infection symptom which originates in the microbe. The infection symptom diagnostic glaze by the microbe which designates the imidazole derivative or the condensation imidazole derivative or those indicator bodies which at least possess one nitro group with respect to imidazole ring as the active ingredient, possesses sensitivity in the nitro imidazole.異なる種類の菌種を鑑別することができ、非侵襲的に短時間で簡便に測定及び/又は画像化できる感染症診断薬の提供;微生物に起因する感染症の治療薬のスクリーニング方法の提供。イミダゾール環上に少なくとも1つのニトロ基を有するイミダゾール誘導体若しくは縮合イミダゾール誘導体又はそれらの標識体を有効成分とする、ニトロイミダゾールに感受性を有する微生物による感染症診断薬。
