In this study, we assessed reports of foodborne illness in foodservice reviews as a possible data source for disease surveillance. We observed that reports of foodborne illness on Yelp were sometimes extremely detailed. We also located clusters of reports for particular restaurants, some of which had health safety violations related to food handling and hygiene. Most importantly, we found that foods implicated in foodborne illness reports on Yelp correlated with foods implicated in outbreak reports from the CDC. This could be useful for identifying food vehicles for attribution and estimation of the extent of foodborne illness.
Authors own copyright of their articles appearing in the Online Journal of Public Health Informatics. Readers may copy articles without permission of the copyright owner(s), as long as the author and OJPHI are acknowledged in the copy and the copy is used for educational, not-for-profit purposes. Share-alike: when posting copies or adaptations of the work, release the work under the same license as the original. For any other use of articles, please contact the copyright owner. The journal/publisher is not responsible for subsequent uses of the work, including uses infringing the above license. It is the author's responsibility to bring an infringement action if so desired by the author.