A large number of toxic plants may also cause symptoms.Some agents are more specific to a certain species. Transmissible gastroenteritis coronavirus (TGEV) occurs in pigs resulting in vomiting, diarrhea, and dehydration. It is believed to be introduced to pigs by wild birds and there is no specific treatment available. It is not transmissible to humans. See also
Enterocolitis

References
Notes
Dolin, Raphael; Mandell, Gerald L.; Bennett, John E., eds. (2010). Mandell, Douglas, and Bennetts principles and practice of infectious diseases (7th ed.). Philadelphia: Churchill Livingstone/Elsevier. ISBN 978-0-443-06839-3. External links

Diarrhoea and Vomiting Caused by Gastroenteritis: Diagnosis, Assessment and Management in Children Younger than 5 Years – NICE Clinical Guidelines, No. 84. "Gastroenteritis". MedlinePlus. U.S. National Library of Medicine.
Causes
The cause of Plummer–Vinson syndrome is unknown; however, genetic factors and nutritional deficiencies may play a role. It is more common in women, particularly in middle age, with a peak age over 50 years. Diagnosis
The following clinical presentations may be used in the diagnosis of this condition. Dizziness
Pallor of the conjunctiva and face
Erythematous oral mucosa with burning sensation
Breathlessness
Atrophic and smooth tongue
Peripheral rhagades around the oral cavityThe following tests are helpful in the diagnosis of Plummer–Vinson syndrome. Lab tests
Complete blood cell counts, peripheral blood smears, and iron studies (e.g., serum iron, total iron-binding capacity, ferritin, and saturation percentage) to confirm iron deficiency, either with or without hypochromic microcytic anemia. Imaging
Barium esophagography and videofluoroscopy will help to detect esophageal webs. Esophagogastroduodenoscopy will enable visual confirmation of esophageal webs. The webs occur due to sub-epithelial fibrosis. |

Prevention
Good nutrition with adequate intake of iron may prevent this disorder. Good nutrition should also include balanced diet and exercise. Treatment
Treatment is primarily aimed at correcting the iron-deficiency anemia. Patients with Plummer–Vinson syndrome should receive iron supplementation in their diet. This may improve dysphagia and pain. If not, the web can be dilated with esophageal bougies during upper endoscopy to allow normal swallowing and passage of food. There is risk of perforation of the esophagus with the use of dilators for treatment. Prognosis
Patients generally respond well to treatment. Iron supplementation usually resolves the anemia, and corrects the glossodynia (tongue pain). Plummer-Vinson syndrome is one of the risk factors for developing squamous cell carcinoma of the oral cavity, esophagus, and hypopharynx.