Assertion: indirect elisa | /r/HasProperty | standardized for screening of serum samples
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Source sentences:
text: In house indirect ELISAs for recN have been developed and standardized for screening of serum samples for IgG reactivity against hCoV-229E recN, hCoV-NL63 recN, hCoV-HKU1 recN and MERS-CoV recN, using modified version of previously described indirect ELISAs for SARS-CoV recN and hCoV-OC43 recN3 (Haynes et al.,18; Blanchard et al.,19).