Parasites, Hosts and Diseases (PHD) publishes the results of original research in all aspects of basic and applied parasitology, including parasites of humans and animals, vectors, host-parasite relationships, zoonoses, and tropical medicine. It contains original articles, case reports, brief communications, reviews or mini-reviews, book reviews, and letters to the editor. It is Published bimonthly in February, May, August and November each year. Supplement numbers may be published. All of the manuscripts are peer-reviewed.