This module equips students with the knowledge and skills needed to understand the biology of parasites, their interactions with hosts and vectors, the ways in which they cause disease, and to critically evaluate how this informs measures to control transmission and prevent disease. The foundations for the module include an examination of the concept of parasitism and how it is distinct from other inter-species relationships. The helminth and protozoan parasite species that are responsible for the parasitic diseases with the greatest global burdens of morbidity and mortality then provide the main focus of study. Each species and disease, is examined in terms of parasite biology, life cycles, transmission routes, clinical features and pathogenesis, immune responses and their evasion, diagnosis, control, prevention and treatment. The balance of material across these areas varies between sections in line with medical and research priorities in each field.

The overall module aim is to provide students with an understanding of the biology of parasites and the ways in which they can cause disease in humans.

Intended learning outcomes

Upon successful completion of the module a student will be able to: 

1. Demonstrate specialist knowledge by comparing and explaining details of the development and transmission of the major helminth and protozoan parasite pathogens.
2. Critically evaluate stage specific pathology and pathogenesis of disease during the course of infection, with reference to immune responses and evasion mechanisms.
3. Show a practical understanding of, and be able to evaluate, the various appropriate intervention tools to control parasitological infection, using evidence to support your analysis.

Assessment

This module is assessed by:

• A 2,500 word Assessed Assignment (30%).
• A 3,300 word Time Limited Assessment (70%).

Mode of delivery

Our distance learning modules are delivered entirely online via directed self-study and online materials via the Virtual Learning Environment.

Module duration

Distance learning module studies begin at the start of October each year. Students may start their studies at any time once they gain access to Moodle (the virtual learning environment) and study materials, and work through the materials in line with the assessment schedules. The study year runs from the beginning of October through to June examinations. Some students also study between June and September with extended tutorial support (e.g. those undertaking projects, the Clinical Trials integrating report, or two of the Epidemiology modules). Deadlines for submission of coursework vary per programme but are usually in February, March, May, and September.

How you'll study

Our distance learning programmes are predominantly online and largely self-directed study to enable you to study independently and at times convenient to you. You'll have access to tutorial support and the ability to interact with other students and form study groups throughout the study year via the discussions in our Virtual Learning Environment, Moodle.

Credits

• CATS: 15
• ECTS: 7.5

Module specification

For full information regarding this module please see the module specification.

Please note: information based on the 2025-26 module specification subject to change for 2026-27 entry.