Re: FW: Persistence of coronaviruses on inanimate surfaces and its inactivation with biocidal agents

15/03/2020 at 8:07 am #76462

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Author:
Mark Metherell

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Hello all can anyone please advise what the
most practical and effective biocidal agent
would be best to use on car door handles, keys, steering wheels etc for auto mechanics who work
on several different cars every day?
Mark Metherell
Director,
ACIPC

Sent from my iPhone

On 14 Mar 2020, at 7:54 pm, Glenys Harrington <infexion@ozemail.com.au> wrote:

Hi Marg,
New publication posted on 13th March 2020.
Aerosol and surface stability of HCoV-19 (SARS-CoV-6 2) compared to SARS-CoV-1
medRxiv preprint doi: https://doi.org/10.1101/2020.03.09.20033217

* “HCoV-19 (SARS-2) has caused >88,000 reported illnesses with a current case-fatality ratio of ~2%. Here, we investigate the stability of viable HCoV-19 on surfaces and in aerosols in comparison with SARS35 CoV-1. Overall, stability is very similar between HCoV-19 and SARS-CoV-1. We found that viable virus could be detected in aerosols up to 3 hours post aerosolization, up to 4 hours on copper, up to 24 hours on cardboard and up to 2-3 days on plastic and stainless steel. HCoV-19 and SARS-CoV-1 exhibited similar half-lives in aerosols, with median estimates around 2.7 hours. Both viruses show relatively long viability on stainless steel and polypropylene compared to copper or cardboard: the median half-life estimate for HCoV-19 is around 13 hours on steel and around 16 hours on polypropylene. Our results indicate that aerosol and fomite transmission of HCoV-19 is plausible, as the virus can remain viable in aerosols for multiple hours and on surfaces up to days.

Regards

Glenys

Glenys Harrington
Consultant
Infection Control Consultancy (ICC)
P.O. Box 6385
Melbourne
Australia, 3004
M: +61 404816434
E: infexion@ozemail.com.au
[Description: ICC Diagram ICCversion]

From: ACIPC Infexion Connexion <ACIPCLIST@ACIPC.ORG.AU> On Behalf Of marjenes@OPTUSNET.COM.AU
Sent: Saturday, 14 March 2020 3:42 PM
To: ACIPCLIST@ACIPC.ORG.AU
Subject: Re: [ACIPC_Infexion_Connexion] FW: Persistence of coronaviruses on inanimate surfaces and its inactivation with biocidal agents

Glenys I noted 10 minutes is being recommended by our official feed but its way less than that as you and I know

Regards,

Margaret Jennings
Marjen Education Services

website. http://www.marjenes.com.au
email. marjenes@optusnet.com.au

mob. 0404 088 754

From: ACIPC Infexion Connexion <ACIPCLIST@ACIPC.ORG.AU> On Behalf Of Glenys Harrington
Sent: Monday, 10 February 2020 3:01 PM
To: ACIPCLIST@ACIPC.ORG.AU
Subject: [ACIPC_Infexion_Connexion] FW: Persistence of coronaviruses on inanimate surfaces and its inactivation with biocidal agents

Dear All,

This publication (in press yesterday) notes the following in the summary:

* The analysis of 22 studies reveals that human coronaviruses such as Severe Acute Respiratory Syndrome (SARS) coronavirus, Middle East Respiratory Syndrome (MERS) coronavirus or endemic human coronaviruses (HCoV) can persist on inanimate surfaces like metal, glass or plastic for up to 9 days, but can be efficiently inactivated by surface disinfection procedures with 62-71% ethanol, 0.5% hydrogen peroxide or 0.1% sodium hypochlorite within 1 minute.

Kampf G, et al. Persistence of coronaviruses on inanimate surfaces and its inactivation with biocidal agents, Journal of Hospital Infection, https:// doi.org/10.1016/j.jhin.2020.01.022.

May be of interest/use.

Regards

Glenys

Glenys Harrington
Consultant
Infection Control Consultancy (ICC)
P.O. Box 6385
Melbourne
Australia, 3004
M: +61 404816434
E: infexion@ozemail.com.au
[Description: ICC Diagram ICCversion]

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