Neorickettsia

Ne·o·ri·ckett·si·a

(nē'ō-ri-ket'sē-ă),
A genus of the proteobacter group, order Rickettsiales, family Anaplasmataceae. Medically significant species within the genus include the agent that produces Potomac horse fever. N. helminthoeca is the type species. Some members of genus formerly classified as Ehrlichia.

Neorickettsia

/Neo·rick·ett·sia/ (ne″o-rĭ-ket´se-ah) a genus of rickettsiae (tribe Ehrlichieae), including a single species, N. helmin´thoeca. It is found in the salmon fluke (Troglotrema salmincola), a parasite of various fish, especially salmon and trout, and causes hemorrhagic enteritis in those ingesting raw infected fish.

Neorickettsia

(nē″ō-rĭ-kĕt′sēă) [″ + ″]
A genus of bacteria of the family Anaplasmataceae. They are intracellular parasites transmitted to mammals by insect or animal vectors, including trematodes that infest salmon and trout.

Neorickettsia

a genus in the family Anaplasmataceae, order Rickettsiales. Members parasitize intestinal epithelial cells, monocytes and macrophages and are transmitted by ingestion of infected metacercariae of trematodes.

Neorickettsia helminthoeca
the cause of salmon poisoning in dogs.
Neorickettsia risticii
the cause of equine intestinal ehrlichiosis; equine monocytic ehrlichiosis. Previously Ehrlichia risticii.
References in periodicals archive ?
Reorganization of genera in the families Rickettsiaceae and Anaplasmataceae in the order Rickettsiales: unification of some species of Ehrlichia with Anaplasma, Cowdria with Ehrlichia and Ehrlichia with Neorickettsia, descriptions of six new species combinations and designation of Ehrlichia equi and 'HGE pathogen' as subjective synonyms of Ehrlichia phagocytophila.
SPD is a disease caused by the bacterium Neorickettsia helmintheoca which is carried by the fluke, Nanophyetus salminocola.
Salmon and some other fish can be infected with a parasite that while typically harmless to pets, can be dangerous to dogs if the parasite itself is infected with an organism called Neorickettsia helminthoeca.
This disease, caused by Neorickettsia (Ehrlichia) sennetsu, is characterized by swollen lymph nodes and fever.
Neorickettsia are a genus of intracellular bacterial endosymbionts of parasitic trematodes (digeneans).
and Neorickettsia risticii sequences in GenBank are summarized in the Table.
Serological reactivity to Ehrlichia canis, Anaplasma phagocytophilum, Neorickettsia risticii, Borrelia burgdorferi and Rickettsia conorii in dogs from northwestern Spain.
Comparisons were also made with 16S rRNA sequences from 2 leech-associated forms placed within the genus Rickettsia (13,14), and with taxa from genus Neorickettsia, a group of obligate intracellular forms placed within the Ehrlichiaceae that have been isolated from trematodes.
To the Editor: Neorickettsia helminthoeca causes salmon poisoning disease (SPD) in canids.
Reorganization of genera in the families Rickettsiaceae and Anaplasmataceae in the order Rickettsiales: unification of some species of Ehrlichia with Anaplasma, Cowdria with Ehrlichia, and Ehrlichia with Neorickettsia, descriptions of six new species combinations and designation of Ehrlichia equi and 'HGA agent' as subjective synonyms of Ehrlichia phagocytophila.
Reorganization of genera hl the families Rickettsiaceae and Anaplasmataceae in the order Rickettsiales: unification of some species of Ehrlichia with Anaplasma, Cowdria with Ehrlichia and Ehrlichia with Neorickettsia, descriptions of six new species combinations and designation of Ehrlichia equi and "HGE agent" as subjective synonyms of Ehrlichia phagocytophila.
In all reactions, as a positive control, we used a mixture of DNA of the following microorganisms: Anaplasma phagocytophilum, Neorickettsia sennetsu, Wolbachia pipientis, Francisella tularensis, Bartonella henselae, Borrelia garinii, Coxiella burnetii, and R.