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The Perils of Multiplex Gastrointestinal Pathogen Panels: Pseudo-outbreaks of Salmonellae and Entamoeba histolytica in Immunocompromised Hosts

  • Elizabeth Robilotti (a1) (a2) (a3), Eleanor Powell (a4), Shauna Usiak (a2), Ying Taur (a1) (a3), N. Esther Babady (a1) (a4) and Mini Kamboj (a1) (a2) (a3)...


Two distinct clusters of gastroenteritis due to Salmonellae and Entamoeba histolytica (EH) were identified using a multiplex gastrointestinal pathogen panel (GPP) at a tertiary-care cancer center. Despite temporo-spatial overlap, our investigation did not corroborate transmission or true infection. In clinical practice, GPPs may render false-positive results.

Infect Control Hosp Epidemiol 2018;867–870


Corresponding author

Address correspondence to Elizabeth Robilotti, MD, MPH, 1275 York Avenue Box 9, New York, NY 10065 (


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