Gram-negative cells will stain pink with the Gram stain. If your staining procedure was successful you will see Gram positive cocci and Gram Negative bacilli in your stain ...

Gram-positive cocci are often isolated from clinical samples. It is important to be able to distinguish these organisms from one another because while some are normal flora, others can be pathogenic.

A team of researchers at the University of California, Los Angeles (UCLA) has introduced a virtual Gram staining technique ...