The Rickettsiales are a group of obligate intracellular vector-borne Gram-negative bacteria
that include many organisms of clinical and agricultural importance, including Anaplasma …

Spotted fever group rickettsiae (SFG) are a neglected group of bacteria, belonging to the
genus Rickettsia, that represent a large number of new and emerging infectious diseases …

Introduction Blood-feeding arthropods rely on robust cellular and humoral immunity to
control pathogen invasion and replication. Tick hemocytes produce factors that can facilitate …

Rocky Mountain spotted fever is the most common tick-borne disease in Tennessee.
However, Rickettsia rickettsii has rarely been isolated from endemic ticks, suggesting …

Rickettsial organisms are a diverse group of obligate intracellular bacteria; all species
known to cause human disease are dependent on an arthropod vector and many are …

The pathogenic lifecycle of obligate intracellular bacteria presents a superb opportunity to
develop understanding of the interaction between the bacteria and host under the pretext …

Rickettsia species (spp.) are strict obligate intracellular bacteria, some of which are
pathogenic in their mammalian host, including humans. One critical feature of these stealthy …

Spotted fever group (SFG) rickettsiae are recognized as important agents of human tick-
borne diseases worldwide, such as Mediterranean spotted fever (Rickettsia conorii) and …

Rickettsiae can cause life-threatening infections in humans. Macrophages are one of the
initial targets for rickettsiae after inoculation by ticks. However, it remains poorly understood …

Increasing entomologic and epidemiologic evidence suggests that spotted fever group
rickettsiae (SFGR) other than Rickettsia rickettsii are responsible for spotted fever …