What is the current name of the organism that causes heartwater?

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Multiple Choice

What is the current name of the organism that causes heartwater?

Explanation:
Taxonomic reclassification based on genetic relationships places the heartwater agent in the genus Ehrlichia. The organism causing heartwater is now named Ehrlichia ruminantium. Genetic analyses (such as 16S rRNA and other gene sequences) showed it clusters with Ehrlichia species rather than with Cowdria or Rickettsia, which led to updating its name. The older term Cowdria ruminantium is obsolete, and the alternatives in Rickettsia or Anaplasma reflect older classifications that have since been revised. In and of itself, this organism is an obligate intracellular bacterium transmitted by ticks to ruminants, explaining the disease context while anchoring the correct, current name.

Taxonomic reclassification based on genetic relationships places the heartwater agent in the genus Ehrlichia. The organism causing heartwater is now named Ehrlichia ruminantium. Genetic analyses (such as 16S rRNA and other gene sequences) showed it clusters with Ehrlichia species rather than with Cowdria or Rickettsia, which led to updating its name. The older term Cowdria ruminantium is obsolete, and the alternatives in Rickettsia or Anaplasma reflect older classifications that have since been revised. In and of itself, this organism is an obligate intracellular bacterium transmitted by ticks to ruminants, explaining the disease context while anchoring the correct, current name.

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