Nocardia culture medium

Abstract

The invention discloses a Nocardia culture medium. The Nocardia culture medium is characterized in that the formulation for preparing 1000 ml of the culture medium contains 2-4 g of soluble starch, 10-20 g of bovine liver powder, 0.005-0.02 g of oxacillin, 3-5 million units of multisubtilin, 0.1-0.4 g of allithiamine, 0.01-0.2 g of inositol, 0.8-1.1 g of magnesium sulfate, 15-20 g of agar, and distilled water which is added to reach the total volume of 1000 ml. Compared with the prior art, the Nocardia culture medium has the characteristics of reliable detection and high separation rate.

Description

technical field [0001] The invention relates to the field of test microorganism culture, in particular to a culture medium suitable for Nocardia. Background technique [0002] There are nearly 30 species of Nocardia genus, and nearly 10 species related to medicine. They belong to the genus Actinomycetes and are aerobic bacteria that exist in soil and can cause nocardiosis in humans. Bacteria-carrying dust, soil or food enters the human body through the respiratory tract, skin wound or digestive tract, and then is confined to a certain organ or tissue, or spreads to the brain, kidney or other organs through blood circulation. Because the bacterium is not very common and grows slowly, it takes several weeks to make a more accurate identification using traditional methods, so it is easy to misdiagnose clinically. Commonly used general antibiotics are used for treatment, resulting in delayed time, causing multiple lesions to metastasize, such as metastasizing to the brain, whic...

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Problems solved by technology

And if it is a sputum sample, it is likely to be covered by the normal flora in the sputum sample and cause a misdiagnosis