Clinical case of spotted fever group rickettsiae

Abstract

We report a Astrakhan ricketsiosis fever in woman who came from Astrakhan. On admission she had fever, intoxication syndrome, exanthema. In complex examination of blood serum by ELISA were reveled IgM and IgG to Rickettsia conorii on the 15th day of the disease.

Diagnostic Value of IgA Antibody Measurement in Tick-Borne Spotted Fever (Astrakhan Rickettsial Fever)

“…Moreover, some rickettsias may be transmitted to humans via infected fluids (for example, ectoparasite feces) inoculated into damaged skin or mucous membranes, and this is the main route of transmission for typhus group Rickettsia ( 34 ). Although Rickettsia SFGs are considered to be transmitted only by tick feeding, cases of tick-borne spotted fever in a patient who denies tick attachment have been described ( 7 ). Thus, another mechanism of SFG Rickettsia may exist; it may be supposed that when crushing or removing a tick, people can transfer its fluids to their mucous membranes, causing rickettsia infection.…”

“… Rickettsia conorii subsp. caspia , a causative agent of Astrakhan rickettsial fever (ARF), which is an SFG member, plays an important role in the epidemiology of rickettsial diseases in the Russian Federation ( 7 , 8 ).…”