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Bacteriology got a significant jumpstart with the advent of certain tests, including the Gram-stain, acid-fast stain, and coagulase reactions, to name a few, that made it possible to separate the vast array of bacteria into manageable categories based on the anatomy of the organism and its source.
Acid-fast stain of the small granulomas was positive.
Although formalin-induced autofluorescence and acid-fast stain of CLCs are probably nonspecific phenomena, use of the fluorescent microscope and the Ziehl-Neelsen stain can successfully help in the diagnosis of acute-phase EC, especially in samples with massive tissue necrosis.
Pathology showed granulomata, and acid-fast stain was positive (Figure 2).
An acid-fast stain was performed on the colonies, and the organisms were variably positive.
A modified acid-fast stain is performed to identify parasites such as Cryptosporidium and Isospora, causing chronic diarrhoea in immunocompromised patients.
A sputum acid-fast stain showed abundant acid-fast bacilli and the culture grew Mycobacterium tuberculosis.
As in many developing countries, the acid-fast stain is the only bacteriologic basis for diagnosing tuberculosis (TB) in primary health care institutions in China, where facilities are limited for M.