Eric Walker added Histophilus somni - Wikipedia and | Kansas State University | News and Communications Services to Histophilus somni, and added Histophilus somni to Histophilus

Eric Walker added Histophilus somni to Histophilus, and added Histophilus to Gram-negative bacteria

Eric Walker added a number of topics and a number of links to Gram-negative bacteria, and added Gram-negative bacteria to Bacteria and Gram staining