MICR40150 Host Pathogen Interaction

Academic Year 2024/2025

This module is intended to provide an understanding of host pathogen interactions and the transition of commensal microorganisms to a pathogenic state in host infections. The topics covered will include: Staphylococci, Streptococci and Enterococci: mucosal colonisation, sepsis and other bloodstream infections and immune evasion. C. difficile: Colonisation, infections and post-antibiotic effects and the role of the gut microbiome. Campylobacter, Helicobacter and salmonella: gut colonisation and infections.

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Curricular information is subject to change

Learning Outcomes:

At the end of the course the student will be able to:
1. Understand commensal microorganisms and how they transition to a pathogenic state in infections
2. Have a comprehensive knowledge of the role of microbiota in colonisation and infection
3. Be able to critically evaluate the impact of antibiotic treatment on the prevention and promotion of infections

Student Effort Hours: 
Student Effort Type Hours


Autonomous Student Learning


Online Learning




Approaches to Teaching and Learning:
online lectures; in person tutorials; short MCQ tests; end of semester exam.
Requirements, Exclusions and Recommendations

Not applicable to this module.

Module Requisites and Incompatibles
Not applicable to this module.
Assessment Strategy  
Description Timing Open Book Exam Component Scale Must Pass Component % of Final Grade

Not yet recorded.

Carry forward of passed components
Resit In Terminal Exam
Spring No
Please see Student Jargon Buster for more information about remediation types and timing. 
Feedback Strategy/Strategies

• Feedback individually to students, post-assessment

How will my Feedback be Delivered?

There are a series of 4 assessments over the course of the semester. The results are sent to the student afterwards. For the end of semester assessment upon request students can meet with the module coordinator to review grades and receive commentary on the question they completed.

Name Role
Professor Orina Belton Lecturer / Co-Lecturer
Professor Oliver Blacque Lecturer / Co-Lecturer
Assoc Professor Siobhán McClean Lecturer / Co-Lecturer
Professor John O'Connor Lecturer / Co-Lecturer
Assoc Professor Niamh O'Sullivan Lecturer / Co-Lecturer
Assoc Professor Tadhg Ó'Cróinín Lecturer / Co-Lecturer