| Gram staining revealed Gram-positive diplococci in one case and Gram-positive cocci in another case. |
| Gram staining of a sample revealed many gram-negative diplococci phagocytosed by polymorphonuclear leukocytes. |
| Shortly before he left, however, a call from an excited microbiologist confirmed the presence of Gram negative diplococci in both blood and cerebrospinal fluid culture. |
| The genus Neisseria consists of pathogenic and non-pathogenic species of gram-negative diplococci. |
| If the smear shows Gram negative intracellular diplococci, the patient is treated for gonorrhoea and chlamydia to cover the possibility of a mixed infection. |
