What does Gram staining belong to?

Gram staining can divide bacteria into two categories: Gram-positive bacteria (G+) and Gram-negative bacteria (G-), which belong to double staining and differential staining. Gram staining is a differential staining method widely used in bacteriology. It was founded by Danish doctor and bacteriologist ChristainGram in 1884. Generally, it includes four steps: primary dyeing, mordant dyeing, decolorization and secondary dyeing. Gram-positive bacteria are sensitive to penicillin, while Gram-negative bacteria are sensitive to streptomycin. According to Gram staining method, different strains can be identified and the right medicine can be given.

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