ReviewPublished 12 October 2026Living within: endosymbiosis in parasites of medical importance—profits, expenses, and implications for host–parasite interactionsIman R. Abdel Shafi · Safeya O. El Bassiouni · Magda S. A. AbdeltawabFrontiers in Cellular and Infection Microbiologydoi 10.3389/fcimb.2026.1956183