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Evaluation of an electrostatic particle ionization technology for decreasing airborne pathogens in pigs

Influenza A virus (IAV), porcine reproductive and respiratory syndrome virus (PRRSV), porcine epidemic diarrhea virus (PEDV) and Staphylococcus aureus are important swine pathogens capable of being transmitted via aerosols. The electrostatic particle ionization system (EPI) consists of a conductive...

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Autores principales: Alonso, Carmen, Raynor, Peter C., Davies, Peter R., Morrison, Robert B., Torremorell, Montserrat
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Netherlands 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4996881/
https://www.ncbi.nlm.nih.gov/pubmed/27616810
http://dx.doi.org/10.1007/s10453-015-9413-3
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author Alonso, Carmen
Raynor, Peter C.
Davies, Peter R.
Morrison, Robert B.
Torremorell, Montserrat
author_facet Alonso, Carmen
Raynor, Peter C.
Davies, Peter R.
Morrison, Robert B.
Torremorell, Montserrat
author_sort Alonso, Carmen
collection PubMed
description Influenza A virus (IAV), porcine reproductive and respiratory syndrome virus (PRRSV), porcine epidemic diarrhea virus (PEDV) and Staphylococcus aureus are important swine pathogens capable of being transmitted via aerosols. The electrostatic particle ionization system (EPI) consists of a conductive line that emits negative ions that charge particles electrically resulting in the settling of airborne particles onto surfaces and potentially decreasing the risk of pathogen dissemination. The objectives of this study were to determine the effect of the EPI system on the quantity and viability of IAV, PRRSV, PEDV and S. aureus in experimentally generated aerosols and in aerosols generated by infected animals. Efficiency at removing airborne particles was evaluated as a function of particle size (ranging from 0.4 to 10 µm), distance from the source of ions (1, 2 and 3 m) and relative air humidity (RH 30 vs. 70 %). Aerosols were sampled with the EPI system “off” and “on.” Removal efficiency was significantly greater for all pathogens when the EPI line was the closest to the source of aerosols. There was a greater reduction for larger particles ranging between 3.3 and 9 µm, which varied by pathogen. Overall airborne pathogen reduction ranged between 0.5 and 1.9 logs. Viable pathogens were detected with the EPI system “on,” but there was a trend to reducing the quantity of viable PRRSV and IAV. There was not a significant effect on the pathogens removal efficiency based on the RH conditions tested. In summary, distance to the source of ions, type of pathogen and particle size influenced the removal efficiency of the EPI system. The reduction in infectious agents in the air by the EPI technology could potentially decrease the microbial exposure for pigs and people in confinement livestock facilities. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (doi:10.1007/s10453-015-9413-3) contains supplementary material, which is available to authorized users.
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spelling pubmed-49968812016-09-08 Evaluation of an electrostatic particle ionization technology for decreasing airborne pathogens in pigs Alonso, Carmen Raynor, Peter C. Davies, Peter R. Morrison, Robert B. Torremorell, Montserrat Aerobiologia (Bologna) OriginalPaper Influenza A virus (IAV), porcine reproductive and respiratory syndrome virus (PRRSV), porcine epidemic diarrhea virus (PEDV) and Staphylococcus aureus are important swine pathogens capable of being transmitted via aerosols. The electrostatic particle ionization system (EPI) consists of a conductive line that emits negative ions that charge particles electrically resulting in the settling of airborne particles onto surfaces and potentially decreasing the risk of pathogen dissemination. The objectives of this study were to determine the effect of the EPI system on the quantity and viability of IAV, PRRSV, PEDV and S. aureus in experimentally generated aerosols and in aerosols generated by infected animals. Efficiency at removing airborne particles was evaluated as a function of particle size (ranging from 0.4 to 10 µm), distance from the source of ions (1, 2 and 3 m) and relative air humidity (RH 30 vs. 70 %). Aerosols were sampled with the EPI system “off” and “on.” Removal efficiency was significantly greater for all pathogens when the EPI line was the closest to the source of aerosols. There was a greater reduction for larger particles ranging between 3.3 and 9 µm, which varied by pathogen. Overall airborne pathogen reduction ranged between 0.5 and 1.9 logs. Viable pathogens were detected with the EPI system “on,” but there was a trend to reducing the quantity of viable PRRSV and IAV. There was not a significant effect on the pathogens removal efficiency based on the RH conditions tested. In summary, distance to the source of ions, type of pathogen and particle size influenced the removal efficiency of the EPI system. The reduction in infectious agents in the air by the EPI technology could potentially decrease the microbial exposure for pigs and people in confinement livestock facilities. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (doi:10.1007/s10453-015-9413-3) contains supplementary material, which is available to authorized users. Springer Netherlands 2015-12-08 2016 /pmc/articles/PMC4996881/ /pubmed/27616810 http://dx.doi.org/10.1007/s10453-015-9413-3 Text en © The Author(s) 2015 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
spellingShingle OriginalPaper
Alonso, Carmen
Raynor, Peter C.
Davies, Peter R.
Morrison, Robert B.
Torremorell, Montserrat
Evaluation of an electrostatic particle ionization technology for decreasing airborne pathogens in pigs
title Evaluation of an electrostatic particle ionization technology for decreasing airborne pathogens in pigs
title_full Evaluation of an electrostatic particle ionization technology for decreasing airborne pathogens in pigs
title_fullStr Evaluation of an electrostatic particle ionization technology for decreasing airborne pathogens in pigs
title_full_unstemmed Evaluation of an electrostatic particle ionization technology for decreasing airborne pathogens in pigs
title_short Evaluation of an electrostatic particle ionization technology for decreasing airborne pathogens in pigs
title_sort evaluation of an electrostatic particle ionization technology for decreasing airborne pathogens in pigs
topic OriginalPaper
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4996881/
https://www.ncbi.nlm.nih.gov/pubmed/27616810
http://dx.doi.org/10.1007/s10453-015-9413-3
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