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. 1980 Feb;27(2):638-42.
doi: 10.1128/iai.27.2.638-642.1980.

Sexual transmission of spotted fever group rickettsiae by infected male ticks: detection of rickettsiae in immature spermatozoa of Ixodes ricinus

S F Hayes, W Burgdorfer, A Aeschlimann

Sexual transmission of spotted fever group rickettsiae by infected male ticks: detection of rickettsiae in immature spermatozoa of Ixodes ricinus

S F Hayes et al. Infect Immun. 1980 Feb.

Abstract

Electron microscopic evidence is provided showing that the newly described "Swiss agent," a spotted fever group rickettsia, is incorporated into the reproductive cells of its male tick vector, Ixodes ricinus. Rickettsiae were found in spermatogonia, spermatocytes, and maturing spermatids. The potential significance of these observations is briefly discussed in relation to published data on sexual transmission of rickettsiae by ticks.

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