Originally Posted by
luna_lucid
Many thanks! And :
In the novel,
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that's because OYF's poison was very deadly, and people who touched YK could be poisoned as well. WYHL was trying to help him,
but his people stopped him, and he was forced to leave YK alone. In the end, QCJ found his corpose already ruined by the crows, and he was the one that buried YK.
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I don't think the poison would spread through touch - Sha Tongtian lost his arm because he was wounded by Yang Kang's claws. He was biting and clawing at everyone near him, even WYHL. Due to his losing his senses, he was also hostile to WYHL for being responsible for his parents' deaths (basically all the things he should have done when alive) and WYHL was forced to abandon him.