Israel contributed an important early paper on the ray fungus Actinomyces. He included some drawings made by Langenbeck in 1845 and was the first to describe a human case of actinomycosis.
Ponfick recognized the causative role of Actinomyces in human actinomycosis; he established the identity of the human and animal forms of the disease. He published a book on the subject, Die Actinomykose des Menschen,…
