#COVID19 Journal Club: “Air and Environmental Contamination Caused by COVID-19 Patients: a Multi-Center Study”

Very nice and cleanly done study here, “Air and Environmental Contamination Caused by COVID-19 Patients: a Multi-Center Study” is a very straightforward look at the spread of SARS-CoV-2 in a healthcare setting… without aerosol generating procedures being part of the pictures.  They looked at the air (all negative) and a bunch of surfaces (27% positive …

#COVID19 Journal Club: “The effect of temperature on persistence of SARS-CoV-2 on common surfaces”

Here’s the kind of article that we’ve been asking for since March… looking at the infectivity of SARS-CoV-2 on various surfaces (including paper money) under various conditions.  I was excited when I saw the title and some of the media buzz about this paper.  But then I looked a bit deeper.  So “The effect of …

#COVID19 Journal Club: “Persistence of SARS-CoV-2 in Water and Wastewater”

Another wastewater study… but looking at the very important question of whether infectious virus can be detected in the waste stream.  Most wastewater studies to date have only looked at viral RNA.  The not-too-surprising punchline is that infectious virus dies out long before the RNA signal is degraded.  This kind of information we be useful …

#COVID19 Journal Club: “Transmission of Severe Acute Respiratory Syndrome Coronavirus 2 During Long Flight”

I took a break from blogging to help start up the mass asymptomatic testing program for SARS-CoV-2 at UC Davis but now I’m working through the backlog of relevant papers to post about. I’ve posted a lot so far about restaurants, hospitals, and wastewater sampling…. but to my knowledge this is the first published description …

#COVID19 Preprint Journal Club: “Investigation of a superspreading event preceding the largest meat processing plant-related SARS-Coronavirus 2 outbreak in Germany”

This is arguably getting a bit outside the built environment mandate and more into epidemiology and disease transmission, but I thought this was an interesting paper detailing a particular outbreak in a meat processing facility.  “Investigation of a superspreading event preceding the largest meat processing plant-related SARS-Coronavirus 2 outbreak in Germany“.  What I particularly like …

#COVID19 Journal Club: “An Overview on the Role of Relative Humidity in Airborne Transmission of SARS-CoV-2 in Indoor Environments”

A review article this time, “An Overview on the Role of Relative Humidity in Airborne Transmission of SARS-CoV-2 in Indoor Environments“.  It’s pretty much all there in the title… they looked at the state of current research and tried to summarize it here, specifically with an eye towards actionable choices for people managing buildings.  Abstract …

#COVID19 Journal Club: “Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) Environmental Contamination and Childbirth”

A short article here from our prolific collaborators at the University of Oregon, “Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) Environmental Contamination and Childbirth”.  Basically they are looking here at the risk of the spreading of the virus during childbirth… and show that an asymptomatic carrier results in environmental contamination.  No Abstract since it’s a …

#COVID19 Journal Club: “Intermittent occupancy combined with ventilation: An efficient strategy for the reduction of airborne transmission indoors”

I expect to see more and more of this kind of article moving forward.  Moving from “here’s the virus in buildings” to “here’s an approach for dealing with it.  In this article, “Intermittent occupancy combined with ventilation: An efficient strategy for the reduction of airborne transmission indoors” the authors look at the combination of ventilation …

#COVID19 Preprint Journal Club: “Viable SARS-CoV-2 in the air of a hospital room with COVID-19 patients”

I missed blogging about this important preprint when it came out for some reason. “Viable SARS-CoV-2 in the air of a hospital room with COVID-19 patients“.   I’ve talked in the past about how many of the environmental sampling studies come out are only looking at SARS-CoV-2 RNA and not viable virus.   Here’s a nice …

#COVID19 Journal Club: “COVID-19 Surveillance in Southeastern Virginia Using Wastewater-Based Epidemiology”

  Another article showing the value of wastewater surveillance for SARS-CoV-2.  This group took weekly samples through the early days of the pandemic and on into the more recent stages and show how well that correlates with what’s known about outbreaks in the catchment area over that time.  They again highlight the value of this …