b'Is Factory Farming making us sick?Subclinically infected animals displaySymptoms in peopleno symptoms but they can still shed theSufferers of Crohns experience profuse, bacteria into the environment, giving MAPurgent diarrhoea, nausea, vomiting, fevers, the opportunity to become entrenched insevere joint pains, lack of energy and a herd before it is apparent that a problemweight loss. The immune system starts even exists 102 . Every time animals areattacking the lining of the gut, which transported between farms; new herds maybecomes swollen and inflamed. This be infected.painful condition can affect any part of the digestive system from the mouth to the Johnes disease can affect people, thoughanus.experts state that due to important knowledge gaps in understanding its roleTreatmentand importance in the development orThere is no cure for Johnes disease in progression of human disease, its impactanimalsx 106 . Traditionally, it has been on public health cannot yet be quantified or described 103 . controlled through culling, segregating infected animals and stricter hygiene. Increasingly, Johnes disease of ruminantsThere is a vaccine, but it is useful only in and human Crohns disease are regardedlimited situations, and it interferes with as the same infectious disease 104as therethe tuberculin test, which complicates the are clinical similarities between the two 105 .interpretation of bovine TB testing 107 .However, if MAP is linked to Crohns,Crohns disease in people is traditionally transmission routes have not yet beentreated with drugs, nutrition supplements established. and surgery. However, there is evidence that eating a plant-based diet can help Symptoms in animals with the symptoms associated with Crohns In cows, the main signs are diarrhoea anddisease 108 .wasting. MAP symptoms are progressive, and so affected animals become increasingly emaciated and usually die as a result of dehydration and muscle loss. Sheep become emaciated but do not suffer diarrhoea. Signs are rarely evident until two or more years after the initial infection.19'