VetBact - 'Easy' Gram Staining Quiz

Question

Species/subspecies	G+	G-
Which of the following bacteria is/are Gram positive (G+) and which ones are Gram negative (G-)?
Brucella abortus:
Salmonella enterica enterica:
Brucella melitensis:
Yersinia pestis:
Bacillus cereus:
List correct answers