Abstract

To the Editor: Human babesiosis caused by Babesia divergens, a zoonotic pathogen of bovines in Europe, is an emerging tickborne disease (1). In the United States, a closely related Babesia sp. was identified in persons in Missouri and Kentucky and in eastern cottontail rabbits (Sylvilagus floridanus) on Nantucket Island, Massachusetts (2–5). We report that sika deer (Cervus nippon) in Japan also carry parasites genetically closely related to B. divergens.

Highlights

  • BdivCCTR2 (5′-GGCTAATAA G T C G ATAT TGCGGGGC TCACG-3′) for the first and second rounds, respectively

  • KC465978) was distinct from sequences of the other 11 samples (97.5%–97.6% identity in 1,041 bp), which consisted of 7 variant sequences

  • KC465979–88) were more heterogeneous (98.7%–99.9% identity) than those for rDNA and β-tubulin; this finding was expected because CCT7 evolves more quickly [6]

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Summary

Introduction

BdivCCTR2 (5′-GGCTAATAA G T C G ATAT TGCGGGGC TCACG-3′) for the first and second rounds, respectively. The sequence for sample 08–22 from Hokkaido KC465978) was distinct from sequences of the other 11 samples (97.5%–97.6% identity in 1,041 bp), which consisted of 7 variant sequences KC465973–7 and AB857845–6) and 5 identical sequences

Results
Conclusion
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