Survival of Severe Acute Respiratory Syndrome Coronavirus (2005)

This research paper was published in 2005 and relates to SARS-CoV (responsible for the 2002/03 SARS outbreak), not SARS-CoV-2 (responsible for COVID-19). However, since these two viruses are closely related, it is insightful to observe what is known about the former, in order to consider what may be possible (or even likely) for the latter.Continue reading “Survival of Severe Acute Respiratory Syndrome Coronavirus (2005)”

Inactivation of the coronavirus that induces severe acute respiratory syndrome, SARS-CoV

One thing that is well understood about SARS-CoV-2 is that it is closely related to SARS-CoV. The limited amount of research that is available (see previous posts on this blog) indicate that the inactivation of SARS-CoV in the environment, and in response to various disinfection practices is a reasonable surrogate for the inactivation of SARS-CoV-2.Continue reading “Inactivation of the coronavirus that induces severe acute respiratory syndrome, SARS-CoV”

Water Research Australia Factsheet: SARS-CoV-2: Water and Sanitation

Water Research Australia is an independent, not-for-profit research organisation that is member-driven and funded. Members include Australian water utilities, academic institutions and state health regulators. This Fact Sheet has been developed to provide information for the water industry about the COVID-19 virus (SARS-CoV-2) and implications of the virus for the management of drinking water andContinue reading “Water Research Australia Factsheet: SARS-CoV-2: Water and Sanitation”

Stability of SARS-CoV-2 as compared with SARS-CoV-1

This study examined the survival and infectivity of SARS-CoV-2 (COVID-19) and SARS-CoV-1 in air and on solid surfaces. A concentration in the same ballpark as the amount coughed out by an infected person was incorporated into aerosolised droplets which were either kept inside an enclosed drum for 3 hours, or were deposited onto stainless steel,Continue reading “Stability of SARS-CoV-2 as compared with SARS-CoV-1”

Industrial experience and research into the causes of SARS virus transmission in a high-rise residential housing estate in Hong Kong

This report provides very practical insights as to how SARS-CoV is understood to have been transmitted among residents of a high-rise residential housing estate during the SARS outbreak in 2003. This transmission led to a localised outbreak (or ‘hotspot’) in the Amoy Gardens housing estate, in Hong Kong. It provides an important assessment of practicesContinue reading “Industrial experience and research into the causes of SARS virus transmission in a high-rise residential housing estate in Hong Kong”

The source and fate of pandemic viruses in the urban water cycle

This paper was produced by Dr Krista Rule Wigginton, Associate Professor in the Department of Civil and Environmental Engineering at the University of Michigan and two students under her supervision (Y. Ye and R.M. Ellenberg). It was commissioned by the Editors of the Royal Society of Chemistry journal “Environmental Science: Water Research & Technology” asContinue reading “The source and fate of pandemic viruses in the urban water cycle”

Persistence of coronaviruses on inanimate surfaces and their inactivation with biocidal agents

This review of previously reported studies was published in March 2020, so provides a very current update on the persistence of (human and veterinary) coronaviruses (such as SARS-CoV-2) on surfaces and their inactivation with potential disinfection reagents. The analysis of 22 studies revealed that human coronaviruses such as SARS-CoV, MERS-CoV or endemic human coronaviruses (HCoV)Continue reading “Persistence of coronaviruses on inanimate surfaces and their inactivation with biocidal agents”

Effects of Air Temperature and Relative Humidity on Coronavirus Survival on Surfaces (2010)

This paper does not specifically address the fate of coronaviruses in water. But it reports some relevant facts that affect the survival of coronaviruses on surfaces. These are the importance of air temperature and relative humidity. This research was undertaken using surrogate viruses in order to avoid the challenges of working with the highly pathogenicContinue reading “Effects of Air Temperature and Relative Humidity on Coronavirus Survival on Surfaces (2010)”

Excretion and detection of SARS coronavirus and its nucleic acid from digestive system (2005)

The aim of this study was to assess whether SARS coronavirus (SARS-CoV) could be excreted from the human digestive system. It was reported in the World Journal of Gastroenterology in 2005. Cell culture and semi-nested RT-PCR were used to detect SARS-CoV and its RNA from 21 stool and urine samples, and a kind of electropositiveContinue reading “Excretion and detection of SARS coronavirus and its nucleic acid from digestive system (2005)”

Study on the resistance of severe acute respiratory syndrome-associated coronavirus (2005)

The virus responsible for the 2002/03 coronavirus outbreak (SARS-CoV) was reported to be detected in faeces, urine and water. The inactivation of SARS-CoV in wastewater with chlorine-based disinfectants, sodium hypochlorite and chlorine dioxide was also studied. The researchers demonstrated that the virus could persist for 2 days in hospital wastewater, domestic sewage and dechlorinated tapContinue reading “Study on the resistance of severe acute respiratory syndrome-associated coronavirus (2005)”