| Oxygen-needing bacterium |
| A bacterium. |
| Bacterium requiring oxygen, e.g. |
| Rod-shaped bacterium |
| Bacterium that doesn't need oxygen |
| Bacterium binder |
| Bacterium whose first letter stands for Escherichia |
| Bacterium plaguing some Florida shooters? |
| Scary bacterium |
| Septic tank bacterium, e.g. |
| Potentially dangerous bacterium |
| Bacterium with a bad reputation |
| Virus or bacterium |
| Bacterium that needs no oxygen |
| Bacterium in some food recalls |
| Bit of bacterium |
| Dangerous bacterium |
| Bacterium that can exist without air. |
| Disease-causing bacterium |
| Oxygen bacterium |
| Bacterium that may cause food poisoning |
| Bacterium found in the gut |
| Common bacterium |
| Sometimes-bad bacterium |
| Escherich's bacterium |
| Lake bacterium |
| Dreaded bacterium |
| Pathogenic bacterium |
| Listeria bacterium, for one |
| Intestinal bacterium |