An unusually high number of positive adenovirus stool antigen tests were observed in neonatal samples from a large tertiary referral unit over a 10-week period, prompting the declaration of an outbreak and escalation of infection control precautions. Subsequent testing of original samples by alternative methods revealed a series of false-positive results. This is the first adenovirus pseudo-outbreak to be reported in the United Kingdom and the first to involve the Proflow Rotavirus-Adenovirus Combi test.
Keywords: Adenovirus; NICU; Neonatal; Pseudo-outbreak; Rotavirus-adenovirus combi test; Stool antigen test.
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