Environmental contamination risk from asymptomatic SARS-CoV-2 infection

Posted

29th June 2020

Research

There is emerging evidence that contaminated surfaces play a role in the transmission of the SARS-CoV-2 virus that causes COVID-19.

This is in line with the diverse transmission routes of other respiratory viruses such as SARS-CoV-1 and influenza. One of the key features of SARS-CoV-2 is the documented spread from people with asymptomatic and pre-symptomatic infection. A new study has identified contamination with SARS-CoV-2 surrounding patients with asymptomatic infection.

Environmental sampling was performed around 13 patients with laboratory confirmed SARS-CoV-2 infection. 11 patients had mild symptoms, two patients had no symptoms at all. A total of 44 of 112 (39.3%) surface samples were positive for SARS-CoV-2 by RT-PCR, and air samples were negative. Importantly, four surfaces in the room of a patient without symptoms were found to be contaminated with SARS-CoV-2 RNA. The research team did not attempt to culture SARS-CoV-2 from the surfaces, so it is not clear whether the RNA is from viable virus.

This small but important study illustrates the risk of surface contamination from patients with mild and asymptomatic SARS-CoV-2 infection. It also seems likely that staff with asymptomatic infection will also be contaminating their environment, which creates the risk of contact transmission to patients and other staff. These findings reinforce the need for enhanced cleaning and disinfection during the of the COVID-19 pandemic.

Share this article

Tags

Latest News

Research
07.05.2021-Rediroom.jpg

How Rediroom can improve patient flow and reduce t…

In our latest article, we discuss how Rediroom - our mobile singl…

Research
05.05.2021-World-Hand-Hygiene-Day.jpg

World Hand Hygiene Day: The importance of effectiv…

Today, we're celebrating World Hand Hygiene Day, by reminding our…

Research
22.04.2021-Mobile-Phones.jpg

How to correctly disinfect your mobile device

In this article, we discuss the evidence around the contamination…

Research
19.04.2021-Office-Hygiene.jpg

How hand & surface hygiene can help keep your offi…

We discuss how hand and surface hygiene interventions can help ke…

Research
Gloved handing pulling Clinell wipe from dispenser.png

The impact of Clinell Universal on reducing SARS-C…

The role of Clinell Universal in reducing SARS-CoV-2 contaminatio…

Company news
17.03.2021-Victor-Dragoi.jpg

Meet GAMA's new Chief Sales Officer

We virtually sat down with our new Chief Sales Officer (CSO), Vic…

Research
08.03.2021-Safe-Classrooms.jpg

7 top tips for keeping classrooms safe

With schools in England back this week, we decided to put togethe…

Company news
08.03.2021-International-Womens-Day-2.jpg

International Women's Day: Meet GAMA's Chief Resea…

In honour of International Women’s Day, we virtually sat down wit…