What is the fine-grained topic of the following text: A recent study led by a team of researchers at the Johns Hopkins Bloomberg School of Public Health shows the cost of a single foodborne illness outbreak at a restaurant could range between $3,968 and $2.6 million, depending on the severity of the outbreak, how much the company would have to spend on fines, lawsuits and legal fees, as well as the number of employees affected by the incident. Only return the topic.
The financial cost of foodborne illness outbreaks at restaurants.