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. 2008 Jul 18;43(2):148–151. doi: 10.1016/j.jcv.2008.06.006

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Copyright © 2008 Elsevier B.V. All rights reserved.

Since January 2020 Elsevier has created a COVID-19 resource centre with free information in English and Mandarin on the novel coronavirus COVID-19. The COVID-19 resource centre is hosted on Elsevier Connect, the company's public news and information website. Elsevier hereby grants permission to make all its COVID-19-related research that is available on the COVID-19 resource centre - including this research content - immediately available in PubMed Central and other publicly funded repositories, such as the WHO COVID database with rights for unrestricted research re-use and analyses in any form or by any means with acknowledgement of the original source. These permissions are granted for free by Elsevier for as long as the COVID-19 resource centre remains active.

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Fig. 1 — C_T values according to influenza DFA and Binax NOW test results for 132 samples positive by TaqMan RT-PCR. The five samples positive only by RT-PCR had a median (—) C_T value of 34.93 (range 31.47–38.47). The 57 samples positive by cytopsin-DFA but negative by Binax had a median (—) C_T value of 27.30 (range 20.49–40.02). The 70 samples positive by both cytospin-DFA and Binax NOW had a median (—) C_T value of 21.93 (range 16.00–28.92).