#epidemic
- Abaris - A legendary figure in Greek mythology, known as Abaris the Hyperborean, a priest of Apollo, healer, and shaman attested by Pindar and Herodotus. In the history of medicine and anthropology, he is studied as a representative of archaic pre-scientific medical practices (iatromantis), curing epidemics through incantations, exorcisms, and spiritual purification rituals.
- abatiză - A defensive obstacle made of felled trees with sharpened branches directed toward the enemy (abatis). In the history of military medicine and field epidemiology, areas with abatis accumulated organic waste and stagnant water, becoming unsanitary hotspots and breeding grounds for vectors (mosquitoes, rats) responsible for malaria, typhus, or cholera epidemics among besieged troops.
- Abdera - Ancient Greek city in Thrace, famous in medical history as the birthplace of Democritus, the atomist philosopher who influenced early physiological theories, and visited by Hippocrates, who described local epidemic cases in his treatise 'On Epidemics'.