問題詳情

9.在 Blood agar plate(BAP)上呈現灰色、粗糙、扁平、不規則、不溶血、有磨砂玻璃外觀、直徑4~5 mm,如水母頭或蛇髪女妖頭狀(Medusa-head)的菌落,最可能是下列何菌?
(A)Staphylococcus saprophyticus
(B)Nocardia brasiliensis
(C)Bacillus anthracis
(D)Actinomyces israelii

參考答案

答案:C
難度:簡單0.733
書單:沒有書單,新增

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Bacillus anthracis(1)2-5mm overnight at 35 degrees centigrade without carbon dioxide(2)Non-hemolytic, non-pigmented, dry ground glass surface, edge irregular with comma projections, “Medusa Head”.From: Bacillus anthracis colonies on blood agar, colony characteristics and morphology, medusa head (bacteriainphotos.com)