EHRC - Overview: Ehrlichia chaffeensis (HME) Antibody, IgG, Serum

Test Catalog

Test Name

Test ID: EHRC    
Ehrlichia chaffeensis (HME) Antibody, IgG, Serum

Useful For Suggests clinical disorders or settings where the test may be helpful

As an adjunct in the diagnosis of ehrlichiosis and/or in seroepidemiological surveys of the prevalence of the infection in certain populations


Ehrlichiosis is sometimes diagnosed by observing the organisms in infected WBCs on Giemsa-stained thin blood films of smeared peripheral blood (morulae). Serology may be useful if the morulae are not seen or if the infection has cleared naturally or following treatment.


Serology may also be useful in the follow-up of documented cases of ehrlichiosis or when coinfection with other tick- transmitted organisms is suspected. In selected cases, documentation of infection may be attempted by PCR methods.

Method Name A short description of the method used to perform the test

Immunofluorescence Assay (IFA)

NY State Approved Indicates the status of NY State approval and if the test is orderable for NY State clients.


Reporting Name A shorter or abbreviated version of the Published Name for a test; an abbreviated test name

Ehrlichia Chaffeensis (HME) Ab, IgG

Aliases Lists additional common names for a test, as an aid in searching

E. Chaffeensis
Tick Borne Diseases
HME (Human Monocytic Ehrlichiosis)