2019 · Cambridge, Massachusetts
Ig Nobel Prize ceremony
The Ig Nobel Prizes honor real research that first makes people laugh and then think. I attended the 2019 ceremony at Harvard, where the Economics Prize went to Habip Gedik, Timothy A. Voss, and Andreas Voss. Their paper, “Money and transmission of bacteria,” examined whether paper currency could carry drug-resistant bacteria from one person to another.
The researchers compared how long bacteria survived on sterilized banknotes from seven currencies. They then tested transfer to volunteers’ fingertips from a Romanian leu note, a U.S. dollar, and a euro. In those tests, bacteria survived longest on the leu; transfer occurred from the leu and dollar, but not the euro, in this small follow-up experiment.
The study earned the prize by turning an unexpected question about an everyday object into a careful investigation of bacterial transmission. It showed that bacteria survived on some banknotes and transferred under laboratory conditions; it did not establish how often cash transmits bacteria in daily life. Its wider lesson is that rigorous research on familiar objects can reveal public health questions that might otherwise be overlooked.
People and their work
- Habip Gedik · Author of the banknote bacteria study recognized by the 2019 Economics Ig Nobel Prize · Published study
- Timothy A. Voss · Coauthor of the banknote bacteria study recognized by the 2019 Economics Ig Nobel Prize · Published study
- Andreas Voss · Coauthor of the banknote bacteria study recognized by the 2019 Economics Ig Nobel Prize · Published study
- Marc Abrahams · Founder of the Ig Nobel Prize ceremony and editor of the Annals of Improbable Research · About the Ig Nobel Prizes