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| Clinical disease symptoms |
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Signs and symptoms |
Most usually, affected animals contract the disease after 9-10 weeks of age. A dry, non-productive cough is produced which arises about two weeks after infection. The cough is most prevalent when the animals are roused and may be accompanied by slight fever and reduced feed intake. Under favourable housing conditions and in its uncomplicated form, i.e. without secondary infections, the animals can fully recover within a few days. |
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| More often however, a secondary infection arises and is typically associated with a range of additional, unspecific signs and symptoms: |
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Laboured breathing (dyspnoea) | |
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Poor growth rate |
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Poor food convertion rate | |
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Uneven growth rates within litters and failure to thrive |
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Longer finishing period | |
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In chronically infected herds, the symptoms of enzootic pneumonia are only usually observed in growing and finishing pigs. |
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| The disease can cause severe economic loss, depending on its intensity and the type of secondary pathogen involved. There is often an increased need for antibiotic use on infected farms. |
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