| Bacteria culture medium | 23 |
| Bacteria destroyer | 18 |
| Bacteria discovered by Theodor Escherich | 40 |
| Bacteria fear | 13 |
| Bacteria fighter | 16 |
| Bacteria found in the GI tract | 30 |
| Bacteria in a breakout | 22 |
| Bacteria in an outbreak | 23 |
| Bacteria in grapelike clusters | 30 |
| Bacteria in rare meat | 21 |
| Bacteria in rare meat, maybe | 28 |
| Bacteria in some food poisoning | 31 |
| Bacteria in the gut | 19 |
| Bacteria in the news | 20 |
| Bacteria in uncooked food | 25 |
| Bacteria in undercooked meat | 28 |
| Bacteria related to a spinach recall | 36 |
| Bacteria related to many food recalls | 37 |
| Bacteria rendered harmless by pasteurization | 44 |
| Bacteria requiring oxygen | 25 |
| Bacteria sample container | 25 |
| Bacteria suffix | 15 |
| Bacteria that die without free oxygen | 37 |
| Bacteria that need oxygen | 25 |
| Bacteria used in genetics research | 34 |
| Bacteria's culture | 22 |
| Bacteria's treat | 20 |
| Bacteria-fighting drug | 22 |
| Bacteria-free | 13 |
| Bacteria-free state | 19 |
| Bacteria-free substances | 24 |
| Bacteria-growing gel | 20 |
| Bacteria-inhibiting drug | 24 |
| Bacteria-ridden | 15 |
| Bacterial culture base | 22 |
| Bacterial genus briefly | 24 |
| Bacterial infection | 19 |
| Bacterial infection, for short | 30 |
| Bacterial issue potentially treatable by drinking cranberry juice: Abbr. | 72 |
| Bacterial organism | 18 |
| Bacterial strain | 16 |
| Bacteriologist Dubos | 20 |
| Bacteriologist for whom a dish was named | 40 |
| Bacteriologist J.R. _____ | 25 |
| Bacteriologist Jonas | 20 |
| Bacteriologist Julius | 21 |
| Bacteriologist known for his dish | 33 |
| Bacteriologist Paul who coined the word "chemotherapy" | 64 |
| Bacteriologist Salk | 19 |
| Bacteriologist with a dish named after him | 42 |
| Bacteriologist's base | 25 |
| Bacteriologist's inventory | 30 |
| Bacteriologist's medium | 27 |
| Bacteriologist's study | 26 |
| Bacteriologist's supply | 27 |
| Bacteriologist's wire | 25 |
| Bacteriologist's ___ dish | 29 |
| Bacteriologists' wires | 26 |
| Bacteriology dish | 17 |
| Bacteriology eponym | 19 |
| Bacteriology gel | 16 |
| Bacteriology pioneer: 1828–98 | 36 |
| Bacterium | 9 |
| Bacterium binder | 16 |
| Bacterium found in the lower intestine | 38 |
| Bacterium in undercooked meat | 29 |
| Bacterium needing oxygen | 24 |
| Bacterium plaguing some Florida shooters? | 41 |
| Bacterium requiring oxygen | 26 |
| Bacterium requiring oxygen, e.g. | 32 |
| Bacterium that doesn't need oxygen | 38 |
| Bacterium that needs oxygen | 27 |
| Bacterium used in cloning | 25 |
| Bacterium whose first letter stands for Escherichia | 51 |
| Bactria now | 12 |
| Bactrian | 8 |
| Bactrian and dromedary | 22 |
| Bactrian backbreaker? | 21 |
| Bactrian beast | 14 |
| Bactrian beasts | 15 |
| Bactrian camel features | 23 |
| Bactrian camel's hump count | 31 |
| Bactrian camel's pair | 25 |
| Bactrian is one | 15 |
| Bactrian ___ | 12 |
| Bactrian's pair | 19 |
| Baculine instrument | 19 |
| Bad | 3 |
| Bad "Monopoly" space | 30 |
| Bad --- day | 11 |
| Bad accident | 12 |
| Bad Acid ___ | 12 |
| Bad act | 7 |
| Bad acting | 10 |
| Bad acting? | 11 |
| Bad actor | 9 |
| Bad actor cuts a scene from a Broadway flop? | 44 |
| Bad actor of note | 17 |
| Bad actor's philosophy? | 27 |
| Bad actor? | 10 |