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Allergic rhinitis, of which the seasonal type is called hay fever, is a type of inflammation in the nose that occurs when the immune system overreacts to allergens in the air. [6] It is classified as a type I hypersensitivity reaction . [ 8 ]
Allergic rhinitis or hay fever may follow when an allergen such as pollen, dust, or Balsam of Peru [36] is inhaled by an individual with a sensitized immune system, triggering antibody production. These antibodies mostly bind to mast cells, which contain histamine. When the mast cells are stimulated by an allergen, histamine (and other ...
Equine influenza is characterized by a very high rate of transmission among horses, and has a relatively short incubation time of one to three days. [6] Clinical signs of equine influenza include fever (up to 106 °F [41 °C]), nasal discharge, have a dry, hacking cough, depression, loss of appetite and weakness. [6]
Equid alphaherpesvirus 4, also called Equine herpesvirus 4 (EHV-4), is a virus of the family Herpesviridae that cause rhinopneumonitis in horses. It is the most important viral cause of respiratory infection in foals. [2] Like other herpes viruses, EHV-4 causes a lifelong latent infection in affected animals.
The hay at risk for increased volumes of spores is found at the bottom of the pile. [11] The presence of Farmer's Lung Disease peaks during late winter and early spring and is mostly seen after the harvest season when symptoms have set in. [ 12 ] This disease is most prevalent in damp climates .
Charles Harrison Blackley MRCS (5 April 1820 – 4 September 1900) was the discoverer of the mechanism behind allergic rhinitis caused by pollen, commonly called hay fever. [1] The isolation of hay fever as a condition had been known since 1819 through the work of John Bostock. Blackley was the first to connect pollen to the condition, and ...
The Corolla Wild Horse Fund is working on a DNA survey of the northern herd and has so far tested 150 horses. Data collected in the survey has enabled the nonprofit to determine lineage of the ...
[7] [8] Aeroallergens can cause EG. [9] [10] The stomach is the organ most commonly affected, followed by the small intestine and the colon. [11] [12] As a part of host defense mechanism, eosinophil is normally present in gastrointestinal mucosa, though finding in deeper tissue is almost always pathologic. [13]