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Presence of potentially pathogenic Babesia sp. for human in Ixodes ricinus in Switzerland

100%

Casati S. , Sager H. , Gern L. , Piffaretti J. C.

tom 13

nr 1

We have designed and performed a new PCR method based on the 18S rRNA in order to individuate the presence and the identity of Babesia parasites. Out of 1159 Ixodes ricinus (Acari: Ixodidae) ticks collected in four areas of Switzerland, nine were found to contain Babesia DNA. Sequencing of the short amplicon obtained (411-452 bp) allowed the identification of three human pathogenic species: Babesia microti, B. divergens, for the first time in Switzerland, Babesia sp. EU1. We also report coinfections with B. sp. EU1-Borrelia burgdorferi sensu stricto and Babesia sp. EU1-B. afzelii.

Enzootic reservoir for new tick-transmitted infections

100%

Sinski E.

tom 44

nr 3

New high resolution melting PCR assay for detection and differentiation of several Babesia spp. infecting humans and animals

80%

Rozej-Bielicka W. , Masny A. , Golab E.

tom 62

nr Suppl.

Isolation and amplification by polymerase chain reaction DNA of Babesia microti and Babesia divergens in ticks in Poland

80%

Skotarczak B. , Cichocka A.

tom 08

nr 2

The prevalence of piroplasms in a population of Ixodes ricinus [Acari: Ixodidae] from North-Western Poland

80%

Kuzna-Grygiel W. , Bukowska K. , Cichocka A. , Kosik-Bogacka D. , Skotarczak B.

tom 09

nr 2

The first detection of Babesia EU1 and Babesia canis canis in Ixodes ricinus ticks [Acari, Ixodidae] collected in urban and rural areas in Northern Poland

70%

Cieniuch S. , Stanczak J. , Ruczaj A.

nr 3

231-236

Ixodes ricinus, the most commonly observed tick species in Poland, is a known vector of such pathogenic microorganisms as TBE viruses, Borrelia burgdorferi sensu lata, Anaplasma phagoeytophilum, Rickettsia helvetica, Babesia divergens and B. microti in our country. Our study aimed to find out whether this tick can also transmit other babesiae of medical and veterinary importance. DNA extracts of 1392 ticks (314 nymphs, 552 male and 526 female ticks) collected in urban and rural areas in the Pomerania province (northern Poland), were examined by nested PCR for the detection of Babesia spp., using outer primers: 5-22F and 1661R, and inner primers: 455-479F and 793-772R, targeting specific fragment of 18S rRNA gene. Overall, at least 1.6% ticks were found to be infected with babesial parasites. In the case of nymphs, the minimal prevalence was 0.6%, and it was approx. 3-times lower than in adults (1.9%). Percentages of infected males and females were comparable (2.0% vs. 1.7%). Sequences of 15/22 PCR-derived fragments of 18S rRNA gene demonstrated 100% similarities with the sequence of Babesia EU1 (proposed name B. venatorum) (acc. no. AY046575) (n= 13) and with B. cards canis (acc. no. AY321119) (n = 2), deposited in the GenBank database. The partial 18S rDNA sequences of Babesia EU1 and B. c. canis obtained by us from I. ricinus have been deposited in GenBank, accession nos. GQ325619 and GQ325620, respectively. The results obtained suggest the possible role of I. ricinus as a source of microorganisms, which have been identified as agents of human and canine babesiosis, respectively, in Europe. To our knowledge this is the first report on the occurrence of Babesia EU1 and B. c. canis in I. ricinus in Poland.

Najczęstsze choroby odzwierzęce

51%

Kaczorowska E.

2011

nr 2