Study on Wastewater in Milan and Turin (Italy) shows SARS-CoV-2 already present in December 2019

This week it was reported that traces of the SARS-CoV-2 virus already existed in the wastewaters of Milan and Turin (Italy) in December 2019. The study is not yet published (not even as a preprint, as far as I know), but reported by the Istituto Superiore di Sanità in Italy. “Since 2007 my group hasContinue reading “Study on Wastewater in Milan and Turin (Italy) shows SARS-CoV-2 already present in December 2019”

Comparison of virus concentration methods for the RT-qPCR-based recovery of murine hepatitis virus, a surrogate for SARS-CoV-2 from untreated wastewater

This is a very important and timely paper on the pathway to widespread monitoring of SARS-CoV-2 RNA is in sewage for the purpose of wastewater-based epidemiology. It’s increasingly difficult to keep track of all of the papers that have been put forward, either as published journal papers or (non-peer reviewed) preprints, on this topic. ThoughContinue reading “Comparison of virus concentration methods for the RT-qPCR-based recovery of murine hepatitis virus, a surrogate for SARS-CoV-2 from untreated wastewater”

SARS-CoV-2 in wastewater: State of the knowledge and research needs

This paper presents a review of the current research outcomes and needs regarding SARS-CoV-2 in wastewater. The fact that such a review should exist so soon after the presence of this virus in wastewater became an issue of interest seems remarkable. But it is also a clear reflection of the avalanche of research on thisContinue reading “SARS-CoV-2 in wastewater: State of the knowledge and research needs”

SARS-CoV-2 known and unknowns, implications for the water sector and wastewater-based epidemiology to support national responses worldwide: early review of global experiences with the COVID-19 pandemic

As many people would have observed, there is currently a large amount of work being undertaken internationally in support of wastewater-based epidemiology for COVID-19. That is, searching for fragments of genetic material (RNA) from the virus SARS-CoV-2 in sewage (or sludge from sewage treatment plants), with the aim of understanding patterns of infection within communities.Continue reading “SARS-CoV-2 known and unknowns, implications for the water sector and wastewater-based epidemiology to support national responses worldwide: early review of global experiences with the COVID-19 pandemic”

SARS-CoV-2 RNA concentrations in primary municipal sewage sludge as a leading indicator of COVID-19 outbreak dynamics

There are now rapidly increasing numbers of (non-peer reviewed) pre-prints and (peer-reviewed) published papers describing the application of wastewater-based epidemiology for COVID-19. This involves measuring the presence of SARS-CoV-2 RNA in municipal wastewater (sewage) and using those measurements to infer spatial and temporal patterns of infection in the community. Some of the most high profileContinue reading “SARS-CoV-2 RNA concentrations in primary municipal sewage sludge as a leading indicator of COVID-19 outbreak dynamics”

OPINION: Faecal shedding of SARS-CoV-2, a snapshot of current data and implications for the water industry

There has been quite some talk about SARS-CoV-2 shedding in faeces and what that might mean for the water industry.  As I see it, there are two aspects to this conversation: the first is a concern that sewage may contain infectious SARS-CoV-2 viruses; and the second relates to the more theoretical potential of using SARS-CoV-2Continue reading “OPINION: Faecal shedding of SARS-CoV-2, a snapshot of current data and implications for the water industry”

Can a Paper-Based Device Trace COVID-19 Sources with Wastewater-Based Epidemiology?

This is another short “scientific opinion” paper, produced for inclusion in the recent Environmental Science and Technology virtual issue on the fate and behaviour of enveloped viruses in the environment. These scientific opinion pieces are non-peer reviewed, but are written by recognised experts in their field and should be viewed as a means to stimulatingContinue reading “Can a Paper-Based Device Trace COVID-19 Sources with Wastewater-Based Epidemiology?”

Presence of SARS-Coronavirus-2 in sewage

Authors: Gertjan Medema and colleagues at KWR in The Netherlands In a non peer reviewed preprint (preprint pdf) report on their use of rt-PCR to detect RNA from SARS-COV-2 at multiple locations.  Their sampling started in February, before COVID19 cases were detected in The Netherlands, and extended when cases were detected at all sites. TheContinue reading “Presence of SARS-Coronavirus-2 in sewage”

Dutch scientists recover SARS-CoV-2 RNA from untreated sewage

The possibility of monitoring the presence of SARS-CoV-2 RNA in sewers has been flagged as an important research opportunity (most recently here). Many people are familiar with the idea of monitoring the presence of illicit drugs in sewage as a means of determining temporal and spatial patterns of drug use in communities. A directly analogousContinue reading “Dutch scientists recover SARS-CoV-2 RNA from untreated sewage”