这段实在不懂，有关神经解剖的，请教。

The
spinal cords of each of the rats (except the one with no PRV
labeling in the SCG) had transneuronal cell body labeling in the
IML in the same spinal segments as the other PRV eye injection
experiments. Thus, these experiments demonstrate no evidence
of infection of nearby, but unrelated, ganglion cells at this time
point.
请教上面引文，不明白怎么就能"thus"了。
引自原文中“results”部分的“experiment 1”
原文见附件。(中国生物论坛 www.biooo.com copyright

THESE EXPERIMENTS,复数形式,应该还有上面你没有写这的一段实验.