One Health, many voices: advances and challenges in toxoplasmosis discussed at the VII Brazilian symposium and IV international symposium on toxoplasmosis

Abstract The VII Brazilian Symposium on Toxoplasmosis (SIMBRATOX) and the IV International Symposium on Toxoplasmosis (SINTOX) were held remotely from October 6 to 8, 2025, under the theme “Toxoplasmosis – Strengthening the Connection between Science and Society for Global Health.” The meeting brought together researchers, health professionals, policymakers, and representatives of civil society from Brazil and abroad, fostering interdisciplinary dialogue grounded in One Health and Global Health perspectives. Scientific sessions and roundtables addressed key dimensions of toxoplasmosis, including human, animal, and environmental transmission pathways; advances in therapeutics and vaccine research; veterinary and epidemiological surveillance; and health education strategies for prevention. Clinical discussions focused on congenital, ocular, and immunocompromised-associated toxoplasmosis, while other sessions examined food- and waterborne transmission, environmental contamination, and emerging challenges linked to parasite diversity. Social and legal panels highlighted patient advocacy, equity, and access to public policies as integral components of disease control. This commentary summarizes the main themes, debates, and perspectives that emerged during the three-day meeting, positioning toxoplasmosis as a model for operationalizing One Health approaches in complex infectious diseases.