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Open AccessArticle

The Stable Fly (Stomoxys calcitrans) as a Possible Vector Transmitting Pathogens in Austrian Pig Farms

1
Department for Farm Animals and Veterinary Public Health, University Clinic for Swine, University of Veterinary Medicine, 1210 Vienna, Austria
2
Department of Pathobiology, Institute of Microbiology, University of Veterinary Medicine, 1210 Vienna, Austria
3
Department of Pathobiology, Institute of Virology, University of Veterinary Medicine, 1210 Vienna, Austria
*
Author to whom correspondence should be addressed.
Microorganisms 2020, 8(10), 1476; https://doi.org/10.3390/microorganisms8101476
Received: 26 August 2020 / Revised: 17 September 2020 / Accepted: 24 September 2020 / Published: 25 September 2020
(This article belongs to the Special Issue Microbial Reservoirs and Dispersal Mechanisms)
This pilot study aimed to investigate stable flies from Austrian pig farms for the presence of defined swine pathogens, such as porcine reproductive and respiratory syndrome virus (PRRSV), porcine circovirus 2 (PCV2), hemotrophic mycoplasmas in ingested blood and/or body parts and bacteria on the surface of the flies. Furthermore, the use of stable flies as a diagnostic matrix for the detection of pathogens in the ingested pig blood should be investigated. In total, 69 different microorganisms could be found on the surface of tested S. calcitrans from 20 different pig farms. Escherichia coli was the most common bacterium and could be found on flies from seven farms. In seven farms, hemotrophic mycoplasmas were detected in stable flies. PRRSV could not be found in any of the samples of these 20 farms but PCV2 was detected in six farms. Whether the stable fly can be used as a matrix to monitor the health status cannot be accurately determined through this study, especially in regard to PRRSV. Nevertheless, it might be possible to use the stable fly as diagnostic material for defined pathogens like Mycoplasma suis and PCV2. View Full-Text
Keywords: hemotrophic mycoplasmas; PRRSV; PCV2; bacteria hemotrophic mycoplasmas; PRRSV; PCV2; bacteria
MDPI and ACS Style

Schwarz, L.; Strauss, A.; Loncaric, I.; Spergser, J.; Auer, A.; Rümenapf, T.; Ladinig, A. The Stable Fly (Stomoxys calcitrans) as a Possible Vector Transmitting Pathogens in Austrian Pig Farms. Microorganisms 2020, 8, 1476.

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