Simply stating, the alleged scale of contact between the Native Americans and the Norse people was quite limited and the latter did not have any motive to get in touch with the former in Norse settlements in Vinland (?).

While there will always be to said more, I wrote some comments to the relevant questions before in this subreddit:

• Were any diseases brought to America by the Vikings?
• When the Vikings were exploring North America in the 9th and 10th centuries, what sort of contact did they have with Native Americans?