Charles Harrison Blackley Charles Harrison Blackley Charles Harrison Blackley (5 April 1820 – 4 September 1900) was the discoverer of the mechanism behind allergic rhinitis caused by pollen, commonly called hay fever. 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 though he held some later discredited views, his insight was an important step in the research of allergens. His most important work was a book titled the "Experimental Researches on the Causes and Nature of Catarrhus aestivus", published in 1873. Charles
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