EQUINE INFECTIOUS ANEMIA 



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Infectious anemia was at one time called "pernicious anemia" 

 because of the profound anemia produced by it. The red corpuscles 

 and hemoglobin are much reduced. As low as one million red 

 corpuscles and 25 per cent, hemoglobin are reported (Meier). 

 Marked changes in the size, shape and staining of the red cor- 

 puscles are found in the more marked cases of the disease. Many 

 poikilocytes, microcytes and megalocytes may be found. Nu- 

 cleated red cells sometimes occur, normoblasts and microblasts. 

 Megaloblasts have not been observed. 



The leucocytes are decreased. Sometimes the}' are increased, 

 but possibly the leucocytosis is due to some other condition. The 

 polymorphonuclears do not seem reduced so much or so constantly 

 as the lymphocytes. Further investigation is needed to determine 

 the changes in the leucocytes. The following tables are of cases 

 in Switzerland reported by Meier. 



Table XLIV. — Cases of Equine Infectious Anemia (Meier) 



