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Ehrlichia-like microorganisms in the salivary glands of unfed Ixodes ricinus (Acari: Ixodidae) nymphs

Zhu, Z.Q.

1999 - Volume: 40 Issue: 1 pages: 3-8


Rickettsia-like microorganisms Erlichia phagocytophila Ixodes ricinus salivary gland acinus wall and lumen tick-borne fever


A large number of Ehrlichia-like microorganisms was detected in acinus cells and lumen of salivary glands of host-searching unfed Ixodes ricinus nymphs. The results indicate that Ehrlichia-like microorganisms are able to multiply in the acinus cells and disseminate into acinus lumen before blood-feeding, and that the microorganism can be transmitted into their vertebrate host once salivation begins during the very early period of blood-feeding. Although if the detected Ehrlichia-like microorganisms is one of strains of Ehrlichia phagocytophila remains uncertain, the results may give some clues to the further investigations into the tick relationship of the TBF agent.

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This work is licensed under a Creative Commons Attribution 4.0 International License
1999 Zhu, Z.Q.
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