a significant trendP = 0.85
We observed a significant trend for local clustering within the FGT in six of the nine animals tested, suggesting lateral spread from the original site of entry (E018, P = 0.85; E024, P = 0.92; E048, P = 0.003; E053, P = 0.001; ELV, P = 0.04; EZJ, P = 0.84; D226, P = 0.03; E052, P = 0.047; D290, P = 0.003).