In the southern region of Siberia, near the area now known as Mongolia, groups of nomadic humans lived around 5,500 years ago. They survived by fishing, hunting, and gathering wild fruits. At that time, these groups were still in the Paleolithic era, without knowledge of agriculture or settled living.

Their way of life was disrupted by the emergence of a plague. This plague had a significant impact, particularly on the children. Further details about this event and its effects on the population are available from the source.

Limited information is available about the specifics of the plague and its spread, but it is known to have originated in Siberia around 5,500 years ago. For more information, readers can consult the original source.