: a genus (the type of the family Haemogregarinidae) of sporozoan parasites that at different stages of their life cycle parasitize the circulatory system of vertebrates and the digestive tract of invertebrates

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“Haemogregarina.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/Haemogregarina. Accessed 8 Jul. 2026.

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