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. 2021 Feb 9:M20-7567. doi: 10.7326/M20-7567

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This article is made available via the PMC Open Access Subset for unrestricted re-use for research, analyses, and text and data mining through PubMed Central. Acknowledgement of the original source shall include a notice similar to the following: "© 2020 American College of Physicians. Some rights reserved. This work permits non-commercial use, distribution, and reproduction in any medium, provided the original author and source are credited." These permissions are granted for the duration of the COVID-19 pandemic or until permissions are revoked in writing. Upon expiration of these permissions, PMC is granted a perpetual license to make this article available via PMC and Europe PMC, consistent with existing copyright protections.

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Figure 2. Cluster map depicting locations, role groups, medical teams, and interconnections among infected staff members and patients. The colors of rectangles (patients) and diamonds (physicians) refer to their medical team affiliation (general medicine teams 1 to 4, neurology, pulmonary transplant, and cardiology). Nurses and other staff members are not affiliated with a specific team but rather with a specific inpatient unit. “WGS” indicates whole-genome sequencing confirmation of cluster association. Patients and staff without the “WGS” indicator were associated with the cluster on epidemiologic grounds. Solid lines between patient rectangles indicate that the 2 patients shared a room. CT Tech = computed tomography radiology technician; Dx = day of positive SARS-CoV-2 test result or symptom onset (whichever occurred earlier) relative to the start of the cluster; MD = medical doctor; PCA = patient care assistant; Phleb = phlebotomist; RN = registered nurse; RPH = registered pharmacist; SLP = speech and language pathology technician; UA = unit associate (environmental services worker). — The colors of rectangles (patients) and diamonds (physicians) refer to their medical team affiliation (general medicine teams 1 to 4, neurology, pulmonary transplant, and cardiology). Nurses and other staff members are not affiliated with a specific team but rather with a specific inpatient unit. “WGS” indicates whole-genome sequencing confirmation of cluster association. Patients and staff without the “WGS” indicator were associated with the cluster on epidemiologic grounds. Solid lines between patient rectangles indicate that the 2 patients shared a room. CT Tech = computed tomography radiology technician; Dx = day of positive SARS-CoV-2 test result or symptom onset (whichever occurred earlier) relative to the start of the cluster; MD = medical doctor; PCA = patient care assistant; Phleb = phlebotomist; RN = registered nurse; RPH = registered pharmacist; SLP = speech and language pathology technician; UA = unit associate (environmental services worker).