In the original published article by Cadnum et alReference Cadnum, Jencson and Gestrich1, figure 3.B was incorrectly repeated instead of figure 4.B. The correct version of Figure 4 appears on the following page. The authors apologize for this error.
![](https://static.cambridge.org/binary/version/id/urn:cambridge.org:id:binary:20190513075725950-0582:S0899823X19000825:S0899823X19000825_fig1g.gif?pub-status=live)
Fig. 4. Efficacy of 3 nonstandard ultraviolet light decontamination devices in reducing (A) methicillin-resistant Staphylococcus aureus (MRSA), (B) vancomycin-resistant Enterococcus, and (C) Clostridium difficile spores on 20-mm2 steel disk carriers placed on a radiology procedure table. The nonstandard devices included a device with 3 adjustable lamps that can be oriented to provide closer proximity to the surface of interest, a robotic device that moves along the side of the table during the treatment cycle, and a device that has 3 vertical towers that run simultaneously to reduce the impact of shadowing. The devices were operated for a 4-minute cycle and reductions in pathogens were measured in comparison to untreated controls. The means of data from triplicate experiments are presented. Error bars indicate standard deviation.