Parasitology publishes original papers on most aspects of pure and applied parasitology including biochemistry, molecular biology, immunology, genetics, physiology, epidemiology, ecology, chemotherapy and the control of parasitic infections, the application of new techniques, advances in the understanding of host–parasite relationships, theoretical studies and major systematic revisions. There is no minimum or maximum length for a paper but all manuscripts, including short ones, must be prepared in the standard format for this journal and any manuscript that is excessively long will be returned for shortening.