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. 2008 Jan 11;61(1):40–48. doi: 10.1016/j.diagmicrobio.2007.12.002

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Copyright © 2008 Elsevier Inc. All rights reserved.

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Fig. 4 — Arbitrarily selected sera from healthy donors were applied in our line immunoassay. Single, double, and multiple anticoronaviral immune responses in various combinations could be verified as shown. In addition, blood samples without seroconversion were identified (C-7). 23N, serum from rabbits immunized with truncated HCoV-NL63 nucleocapsid was used.