1
|
Meister TL, Brüggemann Y, Becker B, Paulmann D, Brill FHH, Steinmann E. Virucidal activity of a plant-oil-based oral rinse against respiratory viruses. J Hosp Infect 2024; 147:83-86. [PMID: 38490488 DOI: 10.1016/j.jhin.2024.02.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 02/01/2024] [Accepted: 02/20/2024] [Indexed: 03/17/2024]
Abstract
BACKGROUND Respiratory viruses have been reported to infect the salivary glands and the throat, which are potential reservoirs for virus replication and transmission. Therefore, strategies to reduce the amount of infective virus particles in the oral mucous membranes could lower the risk of transmission. METHODS The viral inactivation capacity of a plant-oil-based oral rinse (Salviathymol®) was evaluated in comparison with chlorhexidine (Chlorhexamed® FORTE) using a quantitative suspension test according to EN 14476. FINDINGS Salviathymol efficiently inactivated severe acute respiratory syndrome coronavirus type 2 (SARS-CoV-2), respiratory syncytial virus (RSV) and two influenza strains to undetectable levels. CONCLUSION Salviathymol has potential as preventive measure to lower transmission of respiratory viruses.
Collapse
Affiliation(s)
- T L Meister
- Department for Molecular & Medical Virology, Ruhr University Bochum, Bochum, Germany
| | - Y Brüggemann
- Department for Molecular & Medical Virology, Ruhr University Bochum, Bochum, Germany
| | - B Becker
- Dr. Brill + Partner GmbH Institute for Hygiene and Microbiology, Hamburg, Germany
| | - D Paulmann
- Dr. Brill + Partner GmbH Institute for Hygiene and Microbiology, Hamburg, Germany
| | - F H H Brill
- Dr. Brill + Partner GmbH Institute for Hygiene and Microbiology, Hamburg, Germany
| | - E Steinmann
- Department for Molecular & Medical Virology, Ruhr University Bochum, Bochum, Germany.
| |
Collapse
|
2
|
Meister TL, Friesland M, Frericks N, Wetzke M, Haid S, Steinmann J, Todt D, Pietschmann T, Steinmann E. Virucidal activity of oral, hand, and surface disinfectants against respiratory syncytial virus. J Hosp Infect 2023; 141:25-32. [PMID: 37625461 DOI: 10.1016/j.jhin.2023.08.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 08/11/2023] [Accepted: 08/20/2023] [Indexed: 08/27/2023]
Abstract
BACKGROUND Respiratory syncytial virus (RSV) is known as a major cause of respiratory tract infection in adults and children. Human-to-human transmission occurs via droplets as well as direct and indirect contact (e.g. contaminated surfaces or hands of medical staff). Therefore, applicable hygiene measures and knowledge about viral inactivation are of utmost importance. AIM To elucidate the disinfection profile of RSV. METHODS The study evaluated the virucidal efficacy of oral rinses specifically designed for children, World Health Organization (WHO)-recommended hand-rub formulations, and ethanol, as well as 2-propanol against RSV in a quantitative suspension test (EN14476). The stability of RSV on stainless steel discs was assessed and its inactivation by different surface disinfectants (EN16777) investigated. FINDINGS All tested oral rinses except one reduced infectious viral titres to the lower limit of quantification. The two WHO-recommended hand-rub formulations as well as 30% ethanol and 2-propanol completely abolished the detection of infectious virus. Infectious RSV was recovered after several days on stainless steel discs. However, RSV was efficiently inactivated by all tested surface disinfectants based on alcohol, aldehyde, or hydrogen peroxide. CONCLUSION Oral rinses, all tested hand-rub formulations as well as surface inactivation reagents were sufficient for RSV inactivation in vitro.
Collapse
Affiliation(s)
- T L Meister
- Department for Molecular & Medical Virology, Ruhr University Bochum, Bochum, Germany
| | - M Friesland
- Institute for Experimental Virology, TWINCORE, Centre for Experimental and Clinical Infection Research, Hannover, Germany
| | - N Frericks
- Department for Molecular & Medical Virology, Ruhr University Bochum, Bochum, Germany
| | - M Wetzke
- Clinic for Paediatric Pneumology, Allergology, and Neonatology, Hannover Medical School, German Center for Lung Research, Hannover, Germany
| | - S Haid
- Institute for Experimental Virology, TWINCORE, Centre for Experimental and Clinical Infection Research, Hannover, Germany
| | - J Steinmann
- Institute of Clinical Hygiene, Medical Microbiology and Infectiology, General Hospital Nürnberg, Paracelsus Medical University, Nuremberg, Germany; Institute of Medical Microbiology, University Hospital of Essen, Essen, Germany
| | - D Todt
- Department for Molecular & Medical Virology, Ruhr University Bochum, Bochum, Germany; European Virus Bioinformatics Center (EVBC), Jena, Germany
| | - T Pietschmann
- Institute for Experimental Virology, TWINCORE, Centre for Experimental and Clinical Infection Research, Hannover, Germany; German Center for Infection Research (DZIF), Partner Site Hannover-Braunschweig, Hannover, Germany; Cluster of Excellence RESIST (EXC 2155), Hannover Medical School, Hannover, Germany
| | - E Steinmann
- Department for Molecular & Medical Virology, Ruhr University Bochum, Bochum, Germany; German Centre for Infection Research (DZIF), External Partner Site, Bochum, Germany.
| |
Collapse
|
3
|
Steinhauer K, Meister TL, Todt D, Krawczyk A, Paßvogel L, Becker B, Paulmann D, Bischoff B, Eggers M, Pfaender S, Brill FHH, Steinmann E. Virucidal efficacy of different formulations for hand and surface disinfection targeting SARS CoV-2. J Hosp Infect 2021; 112:27-30. [PMID: 33771601 PMCID: PMC7986349 DOI: 10.1016/j.jhin.2021.03.015] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 02/19/2021] [Accepted: 03/01/2021] [Indexed: 12/20/2022]
Abstract
In the ongoing SARS CoV-2 pandemic, effective disinfection measures are needed, and guidance based on the methodological framework of the European Committee for Standardization (CEN) may enable the choice of effective disinfectants on an immediate basis. This study aimed to elucidate whether disinfectants claiming ‘virucidal activity against enveloped viruses’ as specified in the European Standard EN 14476 as well as in the German Association for the Control of Viral Diseases/Robert Koch Institute (DVV/RKI) guideline are effectively inactivating SARS-CoV-2. Two commercially available formulations for surface disinfection and one formulation for hand disinfection were studied regarding their virucidal activity. Based on the data of this study the enveloped SARS-CoV-2 is at least equally susceptible compared to the standard test virus vaccinia used in the EN 14476 and DVV/RKI guidelines. Thus, chemical disinfectants claiming ‘virucidal activity against enveloped viruses’ based on the EN 14476 and DVV/RKI guidelines will be an effective choice to target enveloped SARS-CoV-2 as a preventive measure.
Collapse
Affiliation(s)
- K Steinhauer
- Department Research & Scientific Services, Schülke & Mayr GmbH, Norderstedt, Germany; Faculty of Mechanical Engineering, Kiel University of Applied Sciences, Kiel, Germany.
| | - T L Meister
- Department of Molecular and Medical Virology, Ruhr University Bochum, Bochum, Germany
| | - D Todt
- Department of Molecular and Medical Virology, Ruhr University Bochum, Bochum, Germany; European Virus Bioinformatics Center, Jena, Germany
| | - A Krawczyk
- Department of Infectious Diseases, West German Centre of Infectious Diseases, University Hospital Essen, University of Duisburg-Essen, Essen, Germany; Institute for Virology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - L Paßvogel
- Department Research & Scientific Services, Schülke & Mayr GmbH, Norderstedt, Germany
| | - B Becker
- Dr. Brill + Partner GmbH Institut for Hygiene and Microbiology, Hamburg, Germany
| | - D Paulmann
- Dr. Brill + Partner GmbH Institut for Hygiene and Microbiology, Hamburg, Germany
| | - B Bischoff
- Dr. Brill + Partner GmbH Institut for Hygiene and Microbiology, Hamburg, Germany
| | - M Eggers
- Labor Prof. Gisela Enders MVZ GbR, Stuttgart, Germany
| | - S Pfaender
- Department of Molecular and Medical Virology, Ruhr University Bochum, Bochum, Germany
| | - F H H Brill
- Dr. Brill + Partner GmbH Institut for Hygiene and Microbiology, Hamburg, Germany
| | - E Steinmann
- Department of Molecular and Medical Virology, Ruhr University Bochum, Bochum, Germany
| |
Collapse
|