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Sara Healy

Postgraduate Research Student

Academic and research departments

School of Veterinary Medicine.


My research project


Research interests



Healy SR, Morgan ER, Prada JM, Betson M. First report demonstrating the presence of Toxocara spp. eggs on vegetables grown in community gardens in Europe. Food Waterborne Parasitol. 2022 Apr 20;27:e00158. doi: 10.1016/j.fawpar.2022.e00158. PMID: 35518124; PMCID: PMC9061247

Healy, S.R., Morgan, E.R., Prada, J.M. et al. From fox to fork? Toxocara contamination of spinach grown in the south of England, UK. Parasites Vectors 16, 49 (2023).

Sara R. Healy, Eric R. Morgan , Joaquin M. Prada and Martha Betson (2021) Brain food: rethinking food-borne toxocariasis

Human toxocariasis is a neglected tropical disease, which is actually global in distribution and has a significant impact on global public health. The infection can lead to several serious conditions in humans, including allergic, ophthalmic and neurological disorders such as epilepsy. It is caused by the common roundworm species Toxocara canis and Toxocara cati, with humans becoming accidentally infected via the ingestion of eggs or larvae. Toxocara eggs are deposited on the ground when infected dogs, cats and foxes defecate, with the eggs contaminating crops, grazing pastures, and subsequently food animals. However, transmission of Toxocara to humans via food consumption has received relatively little attention in the literature. To establish the risks that contaminated food poses to the public, a renewed research focus is required. This review discusses what is currently known about food-borne Toxocara transmission, highlighting the gaps in our understanding that require further attention, and outlining some potential preventative strategies which could be employed to safeguard consumer health.