Parasitism, parasites and disease.
D000818:Animals; D005075:Biological Evolution; D002681:China; D004534:Egypt; D005580:Fossils; D006115:Greece; D049690:History, Ancient; D049691:History, Medieval; D006790:Host-Parasite Interactions; D006801:Humans; D007194:India; D007558:Italy; D010271:Parasites; D010272:Parasitic Diseases; D010274:Parasitology / Q000266:history