This study aimed to compare the epidemiology of Rickettsia felis infection and malaria in France, North Africa, and sub-Saharan Africa and to identify a common vector. (cdc.gov)
Several studies have assessed the effect of fastidious bacterial infections in systemic febrile illness, including Rickettsia felis ( 4 - 6 ), Coxiella burnetii ( 7 ), Tropheryma whipplei ( 3 ), and Borrelia spp. (cdc.gov)
Rickettsia felis, an obligate intracellular Gram-negative bacterium belonging to the spotted fever group of Rickettsi a, has been shown to be a common agent of bloodstream infections in among humans Senegal and Kenya, identified in 7% of the population evaluated ( 4 - 6 ). (cdc.gov)
The recent detection of Rickettsia felis DNA in dogs in Australia suggests that dogs are potential mammalian reservoir hosts for this emerging rickettsia. (biomedcentral.com)
Rickettsia felis was successfully isolated in cell culture from all three cat-flea pools. (biomedcentral.com)
Bacterial1
One protein from the obligate intracellular bacterial parasite, Rickettsia prowazekii, is of 498 amino acyl residues, and is believed to span the membrane 12 times. (wikipedia.org)
Typhus5
We describe here the complete genome sequence (1,111,523 base pairs) of the obligate intracellular parasite Rickettsia prowazekii, the causative agent of epidemic typhus. (nih.gov)
Rickettsia, typhus and the mitochondrial connection. (nih.gov)
Rickettsia prowazekii, which is the etiologic agent of typhus, lives in the alimentary tract of the louse. (medscape.com)
After a patient with typhus is treated with antibiotics and the disease appears to be cured, Rickettsia may linger in the body tissues. (medscape.com)
Sporadic cases of active infection with R prowazekii, the etiologic agent of epidemic typhus, have been reported. (medscape.com)
Infection4
Prior infection with Rickettsia typhi provides subsequent and long-lasting immunity to reinfection. (medscape.com)
This has direct consequences for the immune response evoked by the host attempting to resolve intracellular infection. (oncohemakey.com)
Finally, we examine effects of both adaptive and innate immune mechanisms on long-term effects of intracellular bacterial infection. (oncohemakey.com)
We hope this chapter will stimulate an interest in intracellular infection and the unique immunologic insights it can provide. (oncohemakey.com)
Bacterial infections1
In fact, acquired resistance against intracellular bacterial infections depends on activation of multiple arms of the immune system. (oncohemakey.com)
Genome3
The R. prowazekii genome contains the highest proportion of non-coding DNA (24%) detected so far in a microbial genome. (nih.gov)
We report the 860-kb genome of the obligate intracellular plant pathogen phytoplasma (Candidatus Phytoplasma asteris , OY strain). (nature.com)
Phytoplasma is the first obligate intracellular bacterium inhabiting both plant and insect to have its genome sequenced. (nature.com)
Some intracellular bacteria, in particular Rickettsia , are introduced directly into the bloodstream by insect bites from where they have ready access to internal tissues. (oncohemakey.com)
Insect1
R prowazekii is also thought to be transmitted by fleas associated with flying squirrels and their nesting material, by inhaling dried louse feces, or by rubbing Rickettsia -containing louse feces inadvertently into eyes, mucous membranes, or in insect bite-associated wounds. (medscape.com)
Host4
when the host scratches the site, the lice are crushed, and the Rickettsia- laden excrement is inoculated into the bite wound. (medscape.com)
2] The flying squirrel acts as the host for R prowazekii, and transmission to humans is believed to occur via squirrel fleas or lice. (medscape.com)
Intracellular bacteria live inside host cells for most of their lives. (oncohemakey.com)
Most intracellular bacteria, however, enter the host through the mucosa. (oncohemakey.com)
Disease1
Other opportunistic pathogens with an intracellular lifestyle that are relevant for human health include Legionella pneumophila (Legionnaires disease) and Ehrlichia (ehrlichiosis). (oncohemakey.com)
Human1
A Rickettsia- harboring louse bites a human to engage in a blood meal and causes a pruritic reaction on the host's skin. (medscape.com)