We detected 24 Encephalitozoon cuniculi positive Ixodes ricinus ticks of 284 collected in the Czech Republic. Since the route of transmission of microsporidia is not fully understood, the presence of microsporidia in ticks raises the question of whether they may be involved in the transmission of these pathogens.

Institute of Parasitology Biology Centre of the Czech Academy of Sciences České Budějovice Czech Republic

Institute of Vertebrate Biology of the Czech Academy of Sciences Brno Czech Republic

University of South Bohemia České Budějovice Czech Republic

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