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SIM test is a test performed to test for sulfur reduction, Indole production and motility. Black color formed= positive for sulfur reduction Red color after adding Kovacs reag â¦ ent= positive for Indole production Microorgaism growth all over the tube= motile.
ELISA Testing for Feline Leukemia. The ELISA test, also known as the EIA or the enzyme linked immunosorbent assay, is a test that is commonly used to detect immune diseases. The result of an ELISA test will either be negative or positive.If the ELISA test is negative, this means that the cat is not infected with the virus. The test requires a blood sample, and will test the presence of a certain antigen or antibody.In case of leukemia, the ELISA test will detect the presence of the leukemia viral antigen.LISA Testing for Feline Leukemia. The ELISA test, also known as the EIA or the enzyme linked immunosorbent assay, is a test that is commonly used to detect immune diseases. The result of an ELISA test will either be negative or positive.