sample ID IgM ELISA S00498 1.407360905 S00499 1.865257934 S00500 1.297984396 S00501 1.775603608 S00502 1.760216285 S00503 0.874214562 S00538 1.295854245 S00539 1.447940973 S00540 0.901915756 S00541 0.805584575 S00542 1.005785231 S00543 0.783211674 S00579 0.741672219 S00580 0.766598768 S00581 0.748384668 S00582 1.216107 S00583 0.854179471 S00584 0.70197075 S00617 0.65802302 S00618 1.265333149 S00619 1.749510106 S00620 1.143121149 S00621 0.987640914 S00622 0.694236576