Mixed Rickettsia-virus infection in Dermacentor reticulatus imago.

V. V. Gosteva, N. V. Klitsunova, J. Rehácek, E. Kocianová, V. L. Popov, I. V. Tarasevich

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


Electron microscopic examination revealed replication and accumulation of Rickettsia sibirica in the fat body of experimentally infected Dermacentor reticulatus ticks. Rickettsia are released from the fat body cells by budding being surrounded with cytoplasm and plasmalemma of the host cell. Eukaryotic cell structures have been detected consisting of lamella layers whirled around the intact rickettsiae. In addition to rickettsia, microorganisms morphologically resembling Francisella tularensis and an orbivirus were found in tick tissues at morphological examination. The morphology of the virus and stages of its morphogenesis are described. Mixed viral and rickettsial infection has been shown to develop in the same ticks and even in the same fat body cells in a very close association.

Original languageEnglish (US)
Pages (from-to)174-186
Number of pages13
JournalActa virologica
Issue number2
StatePublished - Apr 1991
Externally publishedYes

ASJC Scopus subject areas

  • Virology
  • Infectious Diseases


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