: a skin disease of the horse caused by larval roundworms of the genus Habronema deposited by flies in skin wounds or abrasions where they cause intense inflammation with exudate and local necrosis
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“Summer sores.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/summer%20sores. Accessed 29 May. 2025.
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