Of, relating to, or caused by filaria parasitic worms; describing diseases or conditions associated with filaria.
From 'filaria' (Latin-based term for thread worms) with the suffix '-al' (relating to), a standard medical terminology pattern.
Filarial disease affects the lymphatic system in ways that create severe swelling—in advanced cases, limbs can swell to enormous sizes, a condition called elephantiasis that can literally prevent people from walking.
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