Pale reddish color after Gram staining: Bacteria include all staphylococci, all streptococci and some listeria species: Bacteria include enterobacter species, ... [June 6 2022], salmonella species and ...

With delicate hues of purple and pink, a lab technique called gram staining has reliably characterized bacteria for more than a century. Yet many scientists are mistaken about why the vivid method ...

More information: Çağatay Işıl et al, Virtual Gram staining of label-free bacteria using dark-field microscopy and deep learning, Science Advances (2025). DOI: 10.1126/sciadv.ads2757.

The bacteria kills hundreds of people in the U.S. every year. About 1 million cases of illness are caused by salmonella in food.

The color of gram positive and gram negative bacteria at each stage of Gram staining. Credit: Technology Networks Gram stain procedure ... [June 6 2022], salmonella species and pseudomonas species.