Susanna K.P. Lau*, Xiao-Yan Che†, Kwok-Yung Yuen*, Beatrice H.L. Wong*, Vincent C.C. Cheng*, Gibson K.S. Woo*, Ivan F.N. Hung‡, Rosana W.S. Poon*, Kwok-Hung Chan*, J.S. Malik Peiris*, and Kwok-Yung Yuen*
Figure. . Evaluation of polyclonal and monoclonal antibody–based enzyme-linked immunosorbent assays (ELISAs) for detecting nucleocapsid protein in fecal and urine specimens. The dashed horizontal lines represent the corresponding cutoff optical density values at 450 nm (OD450). SARS, severe acute respiratory syndrome.