Evaluation of the Survivability of MS2 Viral Aerosols Deposited on Filtering Face Piece Respirator Samples Incorporating Antimicrobial Technologies

Details

• Personal Author:
  Fisher E ; Rengasamy S ; Shaffer RE
• Description:
  Background: Respiratory protective devices exposed to pathogenic microorganisms present a potential source of transmission of infection during handling. In this study, the efficacy of 4 antimicrobial respirators to decontaminate MS2, a surrogate for pathogenic viruses, was evaluated and compared with control N95 filtering face piece respirators, which did not contain any known antimicrobial components. Methods: MS2 containing droplet nuclei were generated using a Collison nebulizer and loaded onto respirator coupons at a face velocity of 13.2 cm/seconds for 30 minutes. The coupons were incubated at 2 different temperature and relative humidity (RH) conditions and analyzed for viable MS2 at different time intervals. Results: Results showed that log10 reduction of MS2 was not statistically significant (P > .05) between the control and antimicrobial respirator coupons, when stored at 22 degrees C and 30% RH up to 20 hours. Coupons from 1 of the 4 antimicrobial respirators showed an average MS2 log10 reduction of 3.7 at 37 degrees C and 80% RH for 4 hours, which was statistically significant (P = .05) compared with coupons from the control respirators. Conclusion: Results from this study suggest that MS2 virus decontamination efficacy of antimicrobial respirators is dependent on the antimicrobial agent and storage conditions. [Description provided by NIOSH]
• Subjects:
  Communicable Diseases Microbiology Occupational Health Personal Protective Equipment Respiratory Protective Devices Safety Viral Diseases
• Keywords:
  Author Keywords: Antimicrobial Technology Decontamination Efficacy Infection-control Microorganisms Respirator Respirators Respiratory-protection Respiratory-protective-equipment Survivability Viral-diseases Viral-infections Virus Aerosol

  More +
• ISSN:
  0196-6553
• Document Type:
  Text
• Genre:
  Journal Article
• Place as Subject:
  OSHA Region 3 ; Pennsylvania
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  NPPTL - National Personal Protective Technology Laboratory
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  9-17
• Volume:
  38
• Issue:
  1
• NIOSHTIC Number:
  nn:20036422
• Citation:
  Am J Infect Control 2010 Feb; 38(1):9-17
• Contact Point Address:
  Ronald E. Shaffer, PhD, National Institute for Occupational Safety and Health, National Personal Protective Technology Laboratory, 626 Cochrans Mill Rd, PO Box
• Email:
  RShaffer@cdc.gov
• Federal Fiscal Year:
  2010
• NORA Priority Area:
  Healthcare and Social Assistance
• Peer Reviewed:
  True
• Source Full Name:
  American Journal of Infection Control
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:b8060a0d4fdb7ab23c7e207a742b43ae7d149e8246c7ca5f1b46aeccd7f575f574efac645eaca0781a9546609e8ed4bb848aa3c72de1afefc5fed5ea44d026ad
• Download URL:
  https://stacks.cdc.gov/view/cdc/187860/cdc_187860_DS1.pdf
• File Type:
  [PDF - 203.68 KB ]