Experimental evidence against transmission of Hepatozoon canis by Ixodes ricinus

Alessio Giannelli, Rafael Antonio Nascimento Ramos, Filipe Dantas-Torres, Norbert Mencke, Gad Baneth, Domenico Otranto*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

41 Scopus citations

Abstract

Hepatozoon canis is among the most widespread tick-borne protozoa infecting domestic and wild carni-vores. Its distribution is related to the occurrence of its major vector, the brown dog tick Rhipicephalussanguineus. However, the role of Ixodes ricinus as a vector of H. canis has been hypothesized. In the presentstudy, the development of H. canis was investigated in I. ricinus and R. sanguineus nymphs collected froma naturally infested dog. All I. ricinus ticks examined (n = 133) were negative by cytological examinationat days 20, 30, and 90 post collection, although H. canis DNA was detected in one nymph at day 20 and in2 nymphs at day 30 post collection. On the other hand, H. canis sporogony was documented by cytology, and H. canis DNA was detected by PCR in R. sanguineus at day 30 post collection. These results indicatethat H. canis sporogony does not occur in I. ricinus, but in R. sanguineus, suggesting that I. ricinus does notact as a vector of H. canis.

Original languageAmerican English
Pages (from-to)391-394
Number of pages4
JournalTicks and Tick-borne Diseases
Volume4
Issue number5
DOIs
StatePublished - 2013

Bibliographical note

Publisher Copyright:
© 2013 Elsevier GmbH.

Keywords

  • Hepatozoon canis
  • Ixodes ricinus
  • Rhipicephalus sanguineus
  • Transmission Ticks

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