Ehrlichiosis and Anaplasmosis

Ehrlichiosis and Anaplasmosis is a topic covered in the Washington Manual of Medical Therapeutics.

To view the entire topic, please or .

The Washington Manual is an award-winning, complete mobile solution for nurses and students. Look up information on diseases, tests, and procedures; then consult the database with 5,000+ drugs or refer to 65,000+ dictionary terms. Explore these free sample topics:

-- The first section of this topic is shown below --

General Principles

Ehrlichiosis and anaplasmosis are systemic tick-borne infections caused by obligate intracellular bacteria of the Anaplasmataceae family. Two similar syndromes are recognized:

  • Human monocytic ehrlichiosis (HME), caused by Ehrlichia chaffeensis and transmitted by the lone star tick, is endemic to the Southern and South Central US.
  • Human granulocytic anaplasmosis (HGA), caused by Anaplasma phagocytophilum, is found in the same regions as Lyme disease and shares the same tick vector (Ixodes spp.).

-- To view the remaining sections of this topic, please or --

General Principles

Ehrlichiosis and anaplasmosis are systemic tick-borne infections caused by obligate intracellular bacteria of the Anaplasmataceae family. Two similar syndromes are recognized:

  • Human monocytic ehrlichiosis (HME), caused by Ehrlichia chaffeensis and transmitted by the lone star tick, is endemic to the Southern and South Central US.
  • Human granulocytic anaplasmosis (HGA), caused by Anaplasma phagocytophilum, is found in the same regions as Lyme disease and shares the same tick vector (Ixodes spp.).

There's more to see -- the rest of this topic is available only to subscribers.