Hay fever causes: Difference between revisions
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* Grasses (Family Poaceae): Especially ryegrass (Lolium sp.) and Timothy-grass (Phleum pratense). An estimated 90% of hay fever sufferers are allergic to grass pollen. | * Grasses (Family Poaceae): Especially ryegrass (Lolium sp.) and Timothy-grass (Phleum pratense). An estimated 90% of hay fever sufferers are allergic to grass pollen. | ||
* Weeds: Ragweed (Ambrosia), plantain (Plantago), nettle/parietaria (Urticaceae), mugwort (Artemisia), Fat hen (Chenopodium) and sorrel/dock (Rumex) | * Weeds: Ragweed (Ambrosia), plantain (Plantago), nettle/parietaria (Urticaceae), mugwort (Artemisia), Fat hen (Chenopodium) and sorrel/dock (Rumex) | ||
* Drugs: [[Prednisolone]] | |||
== References == | == References == | ||
{{Reflist|2}} | {{Reflist|2}} | ||
{{WH}} | |||
{{WS}} | |||
[[Category:Immunology]] | [[Category:Immunology]] | ||
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[[Category:Pulmonology]] | [[Category:Pulmonology]] | ||
[[Category:Allergology]] | [[Category:Allergology]] | ||
[[Category:Needs overview]] | [[Category:Needs overview]] | ||
Latest revision as of 21:58, 29 July 2020
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Hay fever Microchapters |
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Diagnosis |
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Treatment |
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Case Studies |
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Hay fever causes On the Web |
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American Roentgen Ray Society Images of Hay fever causes |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Causes
The pollens that cause hay fever vary from person to person and from region to region; generally speaking, the tiny, hardly visible pollens of Anemophily (wind-pollinated) plants are the predominant culprits. Pollens of entomophily (insect-pollinated) plants are too large to remain airborne and pose no risk. Examples of plants commonly responsible for hay fever include:
- Trees: Such as birch (Betula), alder (Alnus), hazel (Corylus), hornbeam (Carpinus), horse chestnut (Aesculus), willow (Salix), poplar (Populus), plane (Platanus), linden/lime (Tilia) and olive (Olea). In northern latitudes birch is considered to be the most important allergenic tree pollen, with an estimated 15–20% of hay fever sufferers sensitive to birch pollen grains. Olive pollen is most predominant in Mediterranean regions.
- Grasses (Family Poaceae): Especially ryegrass (Lolium sp.) and Timothy-grass (Phleum pratense). An estimated 90% of hay fever sufferers are allergic to grass pollen.
- Weeds: Ragweed (Ambrosia), plantain (Plantago), nettle/parietaria (Urticaceae), mugwort (Artemisia), Fat hen (Chenopodium) and sorrel/dock (Rumex)
- Drugs: Prednisolone