e Result E. cheffeensis IgG <64 Result is the reciprocal of the plasma endpoint dilution. Normal Range Is a Her <64 (1:64 dilution): Negative. Anaplasma phagocytophHum Test Method: Indirect EIA (Recombinant Antigenr t Date: 09;17/2018 Antigen Antibody Isotype Result ERE-1' IgM <1 ERF-1- IgG