Grumpy Old Geeks Topics Medieval disease research Topic Medieval disease research 2 mentions in 1 episode Scientific study using preserved DNA from medieval parchment to track historical animal diseases. Mentions 764: Super Duper Intelligence Sep 24, 2026 58:06 Scientists found evidence of ancient sheep disease by analyzing DNA in medieval parchment. 58:24 Analysis revealed traces of sheep pox virus, disease circulated for at least 3,500 years.