Increasing incidence of Ehrlichia chaffeensis
and Anaplasma phagocytophilum in
21) Previously, only Ehrlichia chaffeensis
and E ewingii were thought to cause tick-borne Ehrlichiosis in humans in the US, and neither is endemic in Wisconsin or Minnesota.
9:30 EHRLICHIA CHAFFEENSIS
AND ITS INTERACTION WITH TICK SALIVARY GLANDS
In people, one or the most prevalent culprits is the bacterium Ehrlichia chaffeensis
which causes a form of the disease known as human monocytic ehrlichiosis (HME).
Post-release from the hospital, results came back seropositive (private laboratory, Tampa) for Ehrlichia chaffeensis
, the causative agent of human monocytic ehrlichiosis (HME).
Some of these include other Borrelia species, Babesia microti, Babesia duncani, Ehrlichia chaffeensis
, Anaplasma phagocytophilum, Bartonella henselae, Bartonella quintana, Mycoplasma fermentans and other Mycoplasma species, Rickettsia rickettsii, Coxiella burnetii, Francisella tularensis, viruses such as HHV-6, nematodes, and possibly many other organisms.
Further evaluation revealed positive serology for Ehrlichia chaffeensis
with an initial titer of 64 during the first week's test, 128 for the second week, and a maximum of 1024 by the third week.
is an obligatory intracellular, tick-transmitted bacterium that is maintained in nature in a cycle involving at least one and perhaps several vertebrate reservoir hosts.
Human Monocytic Ehrlichiosis (HME) is a vector-borne disease transmitted through the bite of Ixodid ticks carrying the obligate intraleucocytic bacterium Ehrlichia chaffeensis
Susceptibility of white-tailed deer (Odocoileus virginianus) to infection with Ehrlichia chaffeensis
, the etiologic agent of human ehrlichiosis.
Human monocytic ehrlichiosis (HME), caused by Ehrlichia chaffeensis
, was first recognized in 1986 and was isolated from an Army recruit at Fort Chaffee, Ark.
Pathogen testing in patient with undifferentiated severe sepsis, Minnesota, USA, 2014 * Serum sample Pathogen tested Acute phase HIV-1/-2 Ag/Ab screen negative Leptospira IgM/IgG negative Cryptococcus Antigen screen negative Anaplasma phagocytophilum IgG <1:64, PCR negative Ehrlichia chaffeensis
IgG <1:64, PCR negative Ehrlichia ewingii/canis PCR negative Ehrlichia muris-like PCR negative Borrelia burgdorferi Ab screen negative Babesia microti IgG <1:64, PCR negative Babesia duncani PCR negative Babesia divergens strain MO-1 PCR negative West Nile virus IgM/IgG and PCR negative Eastern equine encephalitis virus IgM/IgG <1:10 Western equine encephalitis virus IgM/IgG <1:10 St.