Recreational waters – A potential transmission route for SARS-CoV-2 to humans?

As the title suggests, this “short communication” paper considers the possibility and likelihood of the transmission of SARS-CoV-2 via exposure through recreational water use. Potential sources of SARS-CoV-2 in recreational waterways might reasonably be assumed to include shedding from other bathers and contamination from municipal wastewater (sewage). This paper is focused only on consideration ofContinue reading “Recreational waters – A potential transmission route for SARS-CoV-2 to humans?”

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”

COVID-19 and Recycled Wastewater Irrigation: A Review of Implications

This (non-peer reviewed) preprint is a collaborative study between researchers in Australia and Bangladesh. It considered the use of reclaimed wastewater for irrigation. While this is a very different application to the use of purified recycled water for supplementing drinking water supplies, the authors appear to have drawn very different conclusions to those described inContinue reading “COVID-19 and Recycled Wastewater Irrigation: A Review of Implications”

Will SARS-CoV-2 reset public health requirements in the water industry? Integrating lessons of the past and emerging research

Back in early April, we highlighted a paper that had been published as an Editorial Perspective in the Royal Society of Chemistry (RSC) journal “Environmental Science: Water Research & Technology”. This was “SARS-CoV-2: What is its fate in urban water cycles and how can the water research community respond?“ by Vincenzo Naddeo (University of SalernoContinue reading “Will SARS-CoV-2 reset public health requirements in the water industry? Integrating lessons of the past and emerging research”

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”

Presence and vitality of SARS-CoV-2 virus in wastewaters and rivers

There have now been many studies describing how the RNA of SARS-CoV-2 can be detected in wastewaters (sewage) and even in some environmental samples. Most of these have been the subject of some discussion on this blog. However, to understand public health implications, it is also necessary to understand whether any of that RNA isContinue reading “Presence and vitality of SARS-CoV-2 virus in wastewaters and rivers”

Making Waves: Coronavirus detection, presence and persistence in the water environment: State of the art and knowledge needs for public health

This paper provides another review of the published scientific literature on coronaviruses in water (including wastewater, environmental waters and drinking water). The focus, in this case, is on the survival of viable infectious virions in these environments, very much from a public health perspective. A key observation is that there have been very few studiesContinue reading “Making Waves: Coronavirus detection, presence and persistence in the water environment: State of the art and knowledge needs for public health”

Coronavirus in water environments: Occurrence, persistence and concentration methods – A scoping review

This paper is a literature review of existing knowledge regarding coronaviruses in water environments such as wastewater and drinking water. As such, it confirms much of what, by now, is fairly well known (and most of the key reviewed papers have also been described on this blog). But systematic reviews are valuable for the confidenceContinue reading “Coronavirus in water environments: Occurrence, persistence and concentration methods – A scoping review”

Considerations for Large Building Water Quality after Extended Stagnation

Most of the world’s cities have been under some form of lock-down during the first few months of the global COVID-19 crisis. This means that many large (and small) buildings have been sparsely inhabited for periods of weeks or months. In many cases, drinking water supplies to those buildings will be lying dormant in pipesContinue reading “Considerations for Large Building Water Quality after Extended Stagnation”

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”