Feline infectious anaemia (FIA) is a disease caused by a microbe called Mycoplasma haemofelis. Mycoplasma haemofelis is an extracellular parasite that lives on the surface of erythrocytes of domestic cats but is not limited to them (Felis catus, Felis domestica). In order to identify the parasite in blood, a blood smear test cat is carried out by means of Romanowski staining methods acridine orange staining (which stains bacterial DNA and RNA) and direct fluorescent antibody staining methods. The aim of this study is to show that the performance of blood smearing in suspected animals is useful for the FIA diagnosis. The result showed that it is impossible to make a definite diagnosis of FIA on the basis of clinical symptoms as it was found in only 80% of the cats with the symptoms of apathy, loss of appetite, cachexia, fetor ex ore, lymph nodes enlargement, mucosal ischaemia, mucosal icterus, arouse a much suspicion of the disease and may call for a further procedure. Performance of blood smearing seems to be a good diagnostic method in the case of the FIA disease, yet, it should be carried out at least three times at interval over several days.

21-28