| Food recall cause | 17 |
| Face seen on many T-shirts | 26 |
| Escherich's medical discovery | 33 |
| Enteric bacteria | 16 |
| Dreaded bacterium | 17 |
| Digestive bacteria | 18 |
| Dangerous contaminant | 21 |
| Dangerous breakout | 18 |
| Dangerous bacterium | 19 |
| Cultured group? | 15 |
| Contaminating bacteria | 22 |
| Common cause of food poisoning | 30 |
| Certain bacterium | 17 |
| Cause of some stomachaches | 26 |
| Cause of some food poisoning | 28 |
| Cause of a health scare | 23 |
| Cause of a food safety warning | 30 |
| Cause of a beach closure, maybe | 31 |
| Cause of a bad gut reaction? | 28 |
| Cause for a health panic | 24 |
| C.D.C. concern | 14 |
| Biology lab bacteria | 20 |
| Bacterium whose first letter stands for Escherichia | 51 |
| Bacterium used in cloning | 25 |
| Bacterium in undercooked meat | 29 |
| Bacterium found in the lower intestine | 38 |
| Bacteria used in genetics research | 34 |
| Bacteria rendered harmless by pasteurization | 44 |
| Bacteria in the gut | 19 |
| Bacteria in rare meat, maybe | 28 |
| Bacteria in a breakout | 22 |
| AIRLINE | 7 |
| "Green" researcher | 28 |
| Global warming researcher, often | 32 |
| Keynesian subj. | 15 |
| Supply-and-demand subj. | 23 |
| A social sci. | 13 |
| H.S. course | 11 |
| College course: Abbr. | 21 |
| Bus. course | 11 |
| Nobel Prize subj. | 17 |
| Supply and demand subj. | 23 |
| M.B.A. earner's class | 25 |
| MBA course | 10 |
| Bus. sch. course | 16 |
| Supply-and-demand sci. | 22 |
| College major, for short | 24 |
| Business-school subj. | 21 |
| The ''dismal science,'' for short | 49 |
| School study: Abbr. | 19 |
| MBA subj. | 9 |
| College course, briefly | 23 |
| Bus. school course | 18 |
| Univ. course | 12 |
| Subj. with graphs | 17 |
| Milton Friedman's subj. | 27 |
| MBA's course | 16 |
| MBA subject | 11 |
| Bernanke subj. | 14 |
| Univ. major | 11 |
| The "dismal science," for short | 41 |
| Part of E.E.C.: Abbr. | 21 |
| High-school class, informally | 29 |
| Concern of the Fed | 18 |
| College subject: Abbr. | 22 |
| College study: Abbr. | 20 |
| Capital subj. | 13 |
| Business-sch. course | 20 |
| Bus. major's study | 22 |
| Bus. major's course | 23 |
| B-school subject | 16 |
| B-school subj. | 14 |
| Wharton course, for short | 25 |
| University subj. | 16 |
| The Fed's concern | 21 |
| Subj. for an MBA | 16 |
| Subj. for an M.B.A. | 19 |
| Say's law subj. | 19 |
| Paul Krugman's subj. | 24 |
| Part of E.E.C. | 14 |
| Nobel Prize category: Abbr. | 27 |
| MBA's subj. | 15 |
| MBA's major, perhaps | 24 |
| MBA field | 9 |
| M.B.A.'s major, perhaps | 27 |
| Keynes's field: Abbr. | 25 |
| Inflation subj. | 15 |
| Greenspan's field: Abbr. | 28 |
| Galbraith's subj. | 21 |
| Future MBA's course | 23 |
| Finance major's subj. | 25 |
| Crash course?: Abbr. | 20 |
| Crash course? | 13 |
| Concern on Wall St. | 19 |
| College major, briefly | 22 |
| Certain Nobel prize subj. | 25 |
| Bus. major's class | 22 |
| "The dismal science," briefly | 39 |
| Wharton School subj. | 20 |
| Wharton maj. | 12 |