Cited by 34Parasitic Diseases Research and TreatmentHelminth infection and controlVector-borne infectious diseases

The prevalence of Dirofilaria repens in cats, healthy dogs and dogs with concurrent babesiosis in an expansion zone in central Europe

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Bajer, Anna, Rodo, Anna, Mierzejewska, Ewa J., Tołkacz, Katarzyna, Welc-Faleciak, Renata·2016·BMC Veterinary Research

Abstract

BACKGROUND: Dirofilaria repens is a mosquito-transmitted, filarial nematode parasitizing dogs, cats and other carnivores. Recently, this parasite has spread in central Europe, including Poland. The aim of the present study was to estimate the prevalence of D. repens in cats and dogs in different regions of the country and to investigate the occurrence and consequences of co-infection with another fast-spreading vector-borne parasite, Babesia canis. RESULTS: In the period 2013-2015, 147 blood samples from cats from central Poland and 257 blood samples from dogs from central, northern, southern and western Poland were collected. Prevalence of D. repens was determined by amplification and sequencing of the 12S rDNA gene fragment. Among dogs, 94 samples originated from clinically healthy dogs from central Poland (Masovia) and 58 samples originated from dogs that were infected with B. canis. Prevalence of D. repens was compared between these two groups of dogs. For the first time D. repens was identified in a cat from central Europe (0.7 % [95 % CL: 0-4.1 %]). The DNA of the filarial endosymbiotic bacterium Wolbachia was detected in two cats (1.4 % [95 % CL: 0-5.5 %]). In dogs, the parasite was detected only in samples from central Poland (Masovia) (local prevalence = 38 % [95 % CL: 25.9-51.8 %]). Prevalence of D. repens was significantly higher in dogs with babesiosis (90 % [95 % CL: 81.6-94.5 %]). Co-infections of D. repens and B. canis were confirmed by sequencing in 30 dogs with babesiosis, but no co-infections were identified in healthy dogs from Masovia. Statistical analyses of blood parameters revealed that dogs with co-infections suffered more severe anemia and thrombocytopenia, but presented milder changes in biochemical parameters (i.e. less elevated concentration of alkaline phosphatase [ALP] and serum urea) suggesting lower risk of hepatic or renal failure in comparison to dogs infected only with B. canis. CONCLUSIONS: These findings are important due to the spread of dirofilariosis and babesiosis in central Europe, as microfilaraemic dogs seem to be more prone to babesiosis. The possible protective effect of the nematode infection against hepatic or renal failure in canine babesiosis and its mechanisms require further investigations.

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Authors
Bajer, A., Rodo, A., Mierzejewska, E. J., Tołkacz, K., & Welc-Faleciak, R.
Affiliations
  • University of Warsaw (PL)
  • Warsaw University of Life Sciences (PL)
Corresponding author
Bajer, Anna
Venue
BMC Veterinary Research
Published
2016-09-05
Volume
12
Issue
1
Pages
183-183
ISSN
1746-6148 (ISSN-L)
OpenAlex
W2514954997
Cited by
34
References
47
Citations by year
2026: 1 · 2025: 1 · 2024: 3 · 2023: 6 · 2022: 2 · 2021: 5 · 2020: 3 · 2019: 5 · 2018: 4 · 2017: 4
FWCI
4.00
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • BMC Veterinary Research (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Funders
  • Narodowe Centrum Nauki (2014/14/E/NZ7/00153)
  • Ministerstwo Nauki i Szkolnictwa Wyszego (DSM 501/86-104924)
Topics
  • Health Sciences › Medicine › Infectious Diseases › Parasitic Diseases Research and Treatment
  • Health Sciences › Veterinary › Small Animals › Helminth infection and control
  • Life Sciences › Immunology and Microbiology › Parasitology › Vector-borne infectious diseases
Keywords
Dirofilaria repens, dirofilariasis, Babesia canis, babesiosis, co-infection, cats, dogs, prevalence, Wolbachia, 12S rDNA, anemia, thrombocytopenia, Central Poland, vector-borne parasites, blood parameters, zoonoses
MeSH terms
Animals, Babesiosis, Cat Diseases, Cats, Dirofilariasis, Dog Diseases, Dogs, Poland, Prevalence, Wolbachia, Coinfection, Dirofilaria repens

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