Spatiotemporal Patterns of Infection for Emerging Larval Liver Fluke ( Dicrocoelium dendriticum) in Three Species of Land Snail in Southern Alberta, Canada.

The control of emerging parasites requires a fundamental knowledge of where and when rates of transmission are high. Data on spatiotemporal patterns of infection are challenging to obtain, particularly for complex life cycle parasites that involve transmission into multiple obligate hosts. The lancet liver fluke, Dicrocoelium dendriticum, has a long history of colonization outside its native host and geographical range in continental Europe.