| FLEMING | Alexander - - -, Scottish bacteriologist who discovered penicillin (7) |
| SELKIRK | Alexander - - -, Scottish sailor marooned on a South Pacific island, regarded as inspiration for Defoe's Robinson Crusoe (7) |
| ALEXANDER | Scottish bacteriologist who discovered penicillin (9,7) |
| EHRLICH | Paul, bacteriologist who discovered a cure for syphilis (7) |
| BACTERIOLOGIST | Profession of Alexander Fleming, who discovered penicillin (14) |
| PASTEUR | French bacteriologist who pioneered stereochemistry (7) |
| ROBERTKOCH | German bacteriologist who discovered the causative agents of diseases including tuberculosis, cholera and anthrax (6,4) |
| SIRALEXANDERFLEMING | British bacteriologist who received the Nobel Prize in 1945 for his work on penicillin (3,9,7) |
| HODGKIN | Chemist awarded a Nobel Prize for identifying the atomic structure of molecules such as insulin and penicillin using X-ray crystallography (7) |
| DYNAPEN | Antibacterial (trade name Dynapen) used to treat staphylococcal infections that are resistant to penicillin. |
| KOCH | German bacteriologist who first isolated the tubercle bacillus |
| ROSS | English bacteriologist who confirmed the Anopheles mosquito transmitted malaria (4) |
| PETRI | German bacteriologist who lent his name to a kind of dish |
| LOUISPASTEUR | Bacteriologist who helped to finally discredit the theory of spontaneous generation (of living things) |
| FLOREY | Australian pathologist who shared a Nobel Prize with Alexander Fleming and Ernst Chain and for work on penicillin (6) |
| CHICKENSOUP | 'Jewish penicillin' - a reputed cureall (7,4) |
| STREP | Penicillin target, perhaps |
| ERNST | Nobelist Chain of penicillin fame |
| MOLD | Penicillin was created from it |
| WONDERDRUG | Penicillin, in the 1940s |
