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Cholesterol inhibition of erosions caused by pneumolysin. Rabbit corneas were injected with pneumolysin (A, B) or pneumolysin mixed with cholesterol (C, D). The presence of corneal erosions is highlighted by fluorescein staining, which is readily apparent 2 and 5 hours after injection in the corneas injected with pneumolysin (A, B) and 24 hours after injection in the corneas injected with pneumolysin mixed with cholesterol (C, D).
