Animated and pictured here for illustrative purposes (courtesy of my improbable colleague) is the rubella virus.
This virus is ‘closely related’ to the vegetable celery by virtue of the clinical picture it produces. On X-ray images of the long bones (e.g. thigh bone and shin bone) – in virus affected individuals – the bone has alternating strips which resemble a celery stalk in appearance.
This resemblance, perhaps with an eye of faith can be seen in: Eisenberg RL, Clinical Imaging: An Atlas of Differential Diagnosis, Lippincott Williams & Wilkins, 2009 page 1080.
BONUS. More information about the devastating effects of rubella can be found here.