Hospital listeriosis outbreaks, such as the one in Kansas linked to Blue Bell ice cream, can be difficult to detect and especially dangerous because 90 percent of Listeria-related illnesses fall on expecting mothers, infants, seniors and others who are immuno-suppressed. In 2010, a determined group of epidemiologists at the Texas State Department of Health Services launched an investigation into a puzzling outbreak that killed five hospital patients over a period of seven months at various hospitals in the central portion of the state. The team wrote about their work in the Oxford Journal of Clinical Infectious Diseases, raising questions about why hospitals don’t do more to protect vulnerable patients from food poisoning.
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