Figure 4.

Titers of epithelium suspensions tested on primary BTY cells and ZZ-R 127 cells. Samples are color coded based on FMDV serotype as follows: $\text{O}$, $\text{A}$, $\text{SAT 1}$, $\text{SAT 2}$, and $\text{Asia 1}$. The dotted green line indicates where the limit of detection was identical between the cells; samples with data points above the line indicate a lower limit of detection in ZZ-R 127 and samples with data points below the line indicate a lower limit of detection in BTY cells.