We would like to point you to
Genomes of Fasciola hepatica from the Americas Reveal Colonization with Neorickettsia Endobacteria Related to the Agents of Potomac Horse and Human Sennetsu Fevers. by McNutty SN, et al. published in PLOS Genetics.
It not only describes the genome of Fasciola hepatica, as can be seen on WormBase ParaSite, but also describes the first observation of endobacteria in this species.