8) * Sequences for partial 16S rRNA, GroEI, and SodB genes are compared with GenBank database sequences from Ehrlichia ruminantium
This tick is restricted to southern Africa and is the chief vector for Ehrlichia ruminantium
, the causative organism of heartwater in several of the tick's ruminant host species (Walker 1991).
Assessment of change in risk for release of Ehrlichia ruminantium
(Heartwater) into the continental United States following discontinuation of the Tropical Bont Tick (Amblyomma variegatum) eradiation program on St.
of the CDC's medical entomology laboratory in Atlanta, reported a human case that she said could be a "divergent strain" of the bacterium Ehrlichia ruminantium
, which is on the U.
Loftis said the new bacterium is genetically similar to Ehrlichia ruminantium
, common in Africa and the Caribbean but so far unreported in the United States.