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Fig. 2 | BMC Infectious Diseases

Fig. 2

From: Nasopharyngeal angiotensin converting enzyme 2 (ACE2) expression as a risk-factor for SARS-CoV-2 transmission in concurrent hospital associated outbreaks

Fig. 2

Infection tracing transmission network analysis of a series of hospital associated SARS-CoV-2 outbreaks in British Columbia by epidemiological week from 07-11-2020 to 04-01-2021 (dd-mm-yyyy) (n = 103 laboratory confirmed cases). Nodes represent confirmed cases while the edges show the direction of outgoing transmission, link a primary case with at least one secondary case. (A) Nodes in the transmission network are stratified by ACE2 transcription (High or Low), 82% of cases (84/103) had above average, high ACE2 transcription (P < 0.001). (B) Nodes in the transmission network are classified by SARS-CoV-2 viral variant. The viral variants AL.1 and B.1.2 caused multiple secondary infections thorough the outbreaks, in the first phase (before Dec.15th, 2020) of the study period most cases were AL.1 and later transitioned to B.1.2 in phase two (after Dec.15th, 2020)

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BMC Infectious Diseases

ISSN: 1471-2334

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