Rapid inactivation of airborne porcine reproductive and respiratory syndrome virus using an atmospheric pressure air plasma

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Abstract

The transmission of airborne diseases in animals poses great risks to animal safety with potential significant economic losses. In this study, we report on the use of a dielectric barrier discharge (DBD) for in-flight inactivation of an airborne aerosolized porcine reproductive and respiratory syndrome virus. The infectivity of the sampled virus downstream compared to upstream of the DBD reactor as determined by the TCID50 method showed a ∼3.5 log10 reduction in the virus titer. Independent testing of the viral genome by the reverse-transcription quantitative real-time polymerase chain reaction method confirmed the inactivation with minimal filtering effects. Both short-lived species such as (Formula presented.) and (Formula presented.) and peroxynitrous acid (ONOOH) chemistry at low pH in the virus-laden droplets are suggested to be responsible for the observed inactivation.

Original languageEnglish (US)
Article number1900269
JournalPlasma Processes and Polymers
Volume17
Issue number10
DOIs
StatePublished - Oct 1 2020

Bibliographical note

Publisher Copyright:
© 2020 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

Keywords

  • airborne
  • dielectric barrier discharge
  • inactivation
  • porcine reproductive and respiratory syndrome
  • reactive species

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