The first step in most bacterial staining procedures is the preparation of a smear. In a smear preparation, cells from a culture are spread in a thin film over a small area of a microscope slide, ...

Thus, they stain the background, leaving the bacterial cells clear and bright against a dark background. Heat Fixation: application of heat to a bacterial smear preparation. This procedure ...

Emerging drug-resistant strains are posing significant challenges to the global fight against tuberculosis (TB) and it is a critical task to detect treatment failure as early as possible.