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Muscle tissue infected with the parasitic nematode, Trichinella spiralis.

A skeletal muscle myotube infected by a Trichinella spiralis parasitic nematode is visualized in a cross-section of rat muscle tissue. The section has been probed with anti-TsUbE2L3 (red), a parasite-derived ubiquitin E2 conjugating enzyme that is secreted by the worm into the host cell during infection. This image shows TsUbE2L3 localizing to the stacks of stichocyte cells within the worm's secretory organ. Nuclei have been counterstained with DAPI (blue). White et al.

Image Credit: Rhiannon R. White, Department of Life Sciences, Imperial College, London, UK