Rickettsia sibirica
Encyclopedia
Rickettsia sibirica is a species of Rickettsia
. This bacterium is the etiologic agent
of North Asian tick typhus
, which is also known as Siberian tick typhus. The tick
s that transmit it are primarily various species of Dermacentor
and Haemaphysalis
.
Rickettsia
Rickettsia is a genus of non-motile, Gram-negative, non-sporeforming, highly pleomorphic bacteria that can present as cocci , rods or thread-like . Being obligate intracellular parasites, the Rickettsia survival depends on entry, growth, and replication within the cytoplasm of eukaryotic host cells...
. This bacterium is the etiologic agent
Pathogen
A pathogen gignomai "I give birth to") or infectious agent — colloquially, a germ — is a microbe or microorganism such as a virus, bacterium, prion, or fungus that causes disease in its animal or plant host...
of North Asian tick typhus
North Asian tick typhus
North Asian tick typhus , also known as Siberian tick typhus, is a condition characterized by a maculopapular rash.It is associated with Rickettsia sibirica.- See also :* Flinders Island spotted fever...
, which is also known as Siberian tick typhus. The tick
Tick
Ticks are small arachnids in the order Ixodida, along with mites, constitute the subclass Acarina. Ticks are ectoparasites , living by hematophagy on the blood of mammals, birds, and sometimes reptiles and amphibians...
s that transmit it are primarily various species of Dermacentor
Dermacentor
Dermacentor is a genus of hard-bodied ticks.-Species:* Dermacentor abaensis Teng, 1963* Dermacentor albipictus Packard, 1869* Dermacentor andersoni Stiles 1908* Dermacentor asper Arthur, 1960...
and Haemaphysalis
Haemaphysalis
Haemaphysalis is a genus of tick.-Species:* Haemaphysalis aborensis Warburton, 1913* Haemaphysalis aciculifer Warburton 1913* Haemaphysalis aculeata Lavarra, 1904* Haemaphysalis adleri Feldman-Muhsam, 1951...
.