Journal of Immunology Research / 2019 / Article / Tab 4

Research Article

Comparative Serological Study for the Prevalence of Anti-MERS Coronavirus Antibodies in High- and Low-Risk Groups in Qatar

Table 4

Comparative serological analysis of reactive samples from CC and CP.

rS1-ELISAFull virus IIFTrS1-IIFTppNT
Sample identifierIgG (OD, ratio, endpoint titer)IgG titerIgM titerIgG titerIC50 titer (EMC/JordanN3)

CC May.2015(0.61, 1.5, 101)Quantity not sufficientQuantity not sufficientQuantity not sufficient76/149
CP Mar.2015(1.084, 2.86, 201)100000>10000630/1707
CP May.2015(0.412, 1.37, ND)32000320199/688
CP Feb.2016(2.229, 6.517, ≥ 3201)>32000100>10000ND

Positive samples are shown in italic. ND: not determined. This samples showed controversial results in rS1-ELISA IgG and was considered positive based on IIFT.

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