Fig. 4From: Development and evaluation of an indirect ELISA for detection of Teladorsagia circumcincta infection in sheepOptical density ratio (ODR) values obtained from sera samples of positive (T. circumcincta infected) and negative (non-infected) controls (NC) against somatic and ES products. The dashed line shows the approximate value of estimated cut-off value. Samples under the line are representative of negative controls and those above the line relates to positive onesBack to article page