201312 BS Understanding Inf Dis V2.0

Page 9

Understanding infectious disease

Whether an animal gets sick or not depends on its immunity, its environment and the challenge by the infectious agent invoved

Sick, sub-clinically infected and carrier animals are major sources of infection

Animals with compromised immunity are more likely to get sick

Some farms and animals are also sources of primary pathogens such as Johne’s disease

The farm environment is normally contaminated with environmental pathogens (e.g. E.Coli )

A build up of environmental pathogens can cause disease

In controlling infections, focus on the animals’ immunity, their environment, the infectious agent and how it is spread

TECHNICAL WORKING GROUP John Mee (Chair) - Teagasc Moorepark, Stephen Conroy - ICBF, Bosco Cowley - MSD Animal Health, Bernard Eivers - National Cattle Breeding Centre, Tim Geraghty - University of Glasgow, David Graham - Programme Manager AHI, Richard Fallon, Pat Kirwan - Veterinary Practitioner, John INTELLECTUAL PROPERTY All images contained in this leaflet are the property of AHI, or have been included with the permission of the owner. Please seek permission from AHI if you wish to use these images and provide the correct attribution of ownership when reproducing them. If reusing any other material in this leaflet, please attribute AHI as the source. The image of the Coccidia oocysts on the front page was provided by BAYER, and the image of the ringworm and the Vaccination figure have been provided by Bosco Cowley MSD Animal Health. All other images are property of Animal Health Ireland. IMPORTANT NOTICE - DISCLAIMER This leaflet is issued and shall be read only on the basis that it will not relied upon by any person as a basis for any act or omission or otherwise without obtaining professional veterinary and health and safety verification and advice and that no liability or responsibility to any person is accepted or shall be incurred, and no recourse or claim by any person will be made, by or against AHI,any stakeholder,collaborator, officer, agent, subcontractor or employee of AHI, any member of the Technical Working Group, any contributor to, author, publisher, distributor, reviewer,compiler or

Moriarty - CVRL, DAFM, Luke O’Grady - UCD, Ronan O’Neill - CVRL, DAFM, Michael Sexton - Veterinary Practitioner.

Technical Working GROUP RAPPORTEUR Fionnuala Malone , Animal Health Ireland.

promoter of or any other person in respect of or in connection with the leaflet or the contents thereof or any matter omitted therefrom. No representation or guarantee is given, whether by AHI or any other such person, that the contents of this information leaflet are comprehensive, up to date, or free from error or omissions, nor that the advice provided is appropriate in every particular circumstance. The contents of this information leaflet are not intended to be a substitute for appropriate direct advice from your veterinary practitioner. Appropriate veterinary and health and safety advice should be taken before taking or refraining from taking action in relation to the animal disease dealt with in this information leaflet. The contents of this leaflet may be updated, corrected, varied or superseded from to time by later publications or material on the AHI website and reference should be made to that website accordingly. Any references in this booklet or links in the AHI website to external websites or other resources are provided for convenience only and the content thereof are not to be considered as endorsed thereby.

Animal Health Ireland, Main Street, Carrick-on-Shannon, Co. Leitrim Phone 071 9671928 Email admin@animalhealthireland.ie Web www.animalhealthireland.ie

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