Dysentry - bacterial causes include-• Shigella spp o...

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Dysentry Dysentery is an inflammatory disorder of the intestine, especially of the colon, that results in severe diarrhoea containing mucus and/or blood in the faeces with fever and abdominal pain. Symptoms The illness may vary in presentation from mild diarrhoea to that of fulminating dysentery. Symptoms of mild dysentery include:- Mild stomach pains Frequent diarrhoea Loss of appetite More severe cases usually progress from the above symptoms to include:- Bloody, water stools with mucus Up to 20 bowel movements a day Griping abdominal pain which are relieved by passing a motion Loss of appetite, Nausea and Vomiting Distension of the abdomen Other nonspecific symptoms include o High temperature o Irritability o Headache o Neck stiffness and generalise myalgia Causes Dysentery is usually caused by consuming foods contaminated with bacterial, protozoan or parasitic worm infections, but occasional they can be caused by chemical irritation or viral infections. The main
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Unformatted text preview: bacterial causes include:-• Shigella spp. o Incubation period is usually one to five days o Milder cases are typically caused by Shigella sonnei o More severe cases are usually caused by Shigella flexneri , Shigella boydii and Shigella dysenteriae • Campylobacter spp. o Incubation is usually three to five days o May be marked systemic illness (fever, headache and myalgia) • Salmonella spp. o Incubation is usually one to five days o Bloody watery stools are a typical feature o Caused by Salmonella enteridus , Salmonella heidelbery , Salmonella typhi and Salmonella paratyphi A and B • Yersina spp o Yersina enterocolitica is transmitted via animals o Symptoms likely to include bloody watery stools Protozoa are another major cause of dysentery, the main two protozoan infections which cause dysentery are:-• Entamoeba histolytica • Giardia lamblia...
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This note was uploaded on 12/04/2011 for the course ANTHRO 2000 taught by Professor Monicaoyola during the Fall '10 term at Broward College.

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Dysentry - bacterial causes include-• Shigella spp o...

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