Wildlife Forensic Science
Q: Which federal agency would be most likely to investigate a wildlife trafficking case involving endangered species?
Did You Know?
The Ziehl-Neelsen (ZN) stain is the most appropriate method for detecting acid-fast bacilli (AFB), particularly Mycobacterium tuberculosis, in sputum cytology. This stain uses carbol fuchsin as the primary stain, which is retained by the mycolic acid in the bacterial cell wall after acid-alcohol decolorization. AFB appear as bright red, slender, slightly curved rods against a blue or green background. The sensitivity can be enhanced by concentration methods and examining multiple fields. While auramine-rhodamine fluorescence staining is more sensitive, ZN remains widely used due to its specificity and low cost.
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