Neorickettsia spp. are Gram-negative, obligatory intracellular bacteria. This bacterial species
is widely distributed in nature and can be found in a variety of trematode species, including …

Neorickettsia (formerly Ehrlichia) risticii is an obligatory intracellular bacterium of digenetic
trematodes. When a horse accidentally ingests aquatic insects containing encysted …

Upon ingestion of adult aquatic insects, horses developed clinical signs of Potomac horse
fever, and Neorickettsia risticii was isolated from the blood. 16S rRNA and 51-kDa antigen …

This study investigated the role of a district irrigation canal in Nevada County, California,
USA, as the point source of infection for Neorickettsia risticii, causative agent of equine …

Potomac horse fever (PHF), a severe and frequently fatal febrile diarrheal disease, has been
known to be caused only by Neorickettsia risticii, an endosymbiont of digenean trematodes …

Potomac horse fever (PHF), a severe and frequently fatal febrile diarrheal disease, has been
known to be caused only by Neorickettsia risticii, an endosymbiont of digenean trematodes …

Potomac horse fever is known to be transmitted through the ingestion of caddisflies
parasitized with Neorickettsia (formerly Ehrlichia) risticii‐infected metacercaria. However, the …

Neorickettsia risticii, the obligatory intracellular bacterium that causes Potomac horse fever,
has been detected in various developmental stages of digenetic trematodes in the …

agent of Potomac horse fever, also called “equine monocytic ehrlichiosis” or “equine
ehrlichial colitis.” N. risticii has recently been classified based on genetic analysis in the …

Potomac horse fever (PHF) is an acute and potentially fatal enterotyphlocolitis of horses with
clinical signs that include anorexia, fever, diarrhea, and laminitis. Its incidence is increasing …