Figure 1

HTLV-1 proviral load in the peripheral blood from HTLV-1-infected patients with RA or connective tissue disease and from HAM/TSP or asymptomatic controls. The 10^th and 90^th percentiles are shown as the lower and upper horizontal bars on the vertical line, while the 25^th and 75^th percentiles are shown as the lower and upper edges of the box; the median is shown within the box. The results shown as dots fall outside the 10^th and 90^th percentiles.