What bacterial species can be eliminated as possibilities for the bacteria responsible for Anna's infection? Explain your reasoning.

The bacterial species that can be eliminated as possibilities for Anna’s infection are gram-positive bacteria such as Streptococcus pneumonia, Streptococcus pyrogenes, Bacillus megaterium, and Micrococcus luteus. Based on the isolated bacteria, the resultant colonies produce a rod-shaped gram-negative bacterium, which is the bacterial species responsible for Anna’s infection.