Allergic rhinitis region to region; in general, the tiny, hardly visible pollens of wind-pollinated plants are the predominant cause. Pollens of insect-pollinated plants are too large to remain airborne and pose no risk. Examples of plants commonly responsible for hay fever include: Allergic rhinitis may also be caused by allergy to Balsam of Peru, which is in various fragrances and other products. Allergy testing may reveal the specific allergens to which an individual is sensitive. Skin testing is the most common method of allergy testing. This may include a patch test to determine if a particular substance is causing the rhinitis, or
Inclusion body rhinitis Inclusion body rhinitis Inclusion Body Rhinitis, also known as IBR or Cytomegalic Inclusion Disease, is a pig disease caused by porcine cytomegalovirus, which is a member of the herpesvirus family. It is a notifiable disease that is found worldwide. It is spread both vertically and horizontally and prevalence is high. It is not a zoonosis but the risk to humans that receive pig organ transplants is currently under investigation. Clinical signs are normally only seen in either piglets less than 3 weeks old or pregnant sows. Signs in piglets include rhinitis, pneumonia, anaemia, fever and sudden death. Black discoloration around