Compiling Information about COVID19 transmission, masks, filtration, schools, etc.

Trying to collect some of the various information about COVID19 transmission and related topics including masks, schools, CO2, variants, etc. Mostly from Twitter threads and News articles Masks Wall Street Journal: Double Face Masks? N95? Protect Yourself Against New Covid-19 Variants With These Mask Upgrades Some important lines Double masking is wearing one mask over …

Wanted – science driven guidelines for deciding if and how to keep open / reopen schools re: #COVID19

I am compiling some materials on science driven guidelines for how to decide if and how to keep open and/or reopen schools in the face of COVID19. Here are some I have compiled that I seem to be useful.  I would love other examples. (Updated 12/21 at 3 PM) National Academy of Sciences Reopening K-12 …

#COVID19 Journal Club “Evidence of Long-Distance Droplet Transmission of SARS-CoV-2 by Direct Air Flow in a Restaurant in Korea”

This one has been getting a lot of popular media attention… and really the title says it all “Evidence of Long-Distance Droplet Transmission of SARS-CoV-2 by Direct Air Flow in a Restaurant in Korea”.  This study describes a transmission that took place at over 20 feet in only 5 minutes… both problematic considering the standard …

#COVID19 Preprint Journal Club: “Wastewater Analysis of SARS-CoV-2 as a Predictive Metric of Positivity Rate for a Major Metropolis”

More wastewater sampling work, “Wastewater Analysis of SARS-CoV-2 as a Predictive Metric of Positivity Rate for a Major Metropolis“.  This one is a larger-scale study in a big city that found wastewater spikes in SARS-CoV-2 to present clinical positives by 2 weeks which is a huge lead time and of major significance for getting a …

#COVID19 Preprint Journal Club: “Distribution of SARS-CoV-2 RNA Signal in a Home with COVID-19 Positive Occupants”

A nice article by several of our colleagues from the MoBE project days.   “Distribution of SARS-CoV-2 RNA Signal in a Home with COVID-19 Positive Occupants” does just what it says in the tile, looks at the signal from SARS-CoV-2 in a home… long after the occupants were determined positive.   They sampled two months after the …

#COVID-19 Journal Club: “The wastewater microbiome: A novel insight for COVID-19 surveillance”

This is a bit more up our alley!  “The wastewater microbiome: A novel insight for COVID-19 surveillance” doesn’t look directly at the virus but at the changes in the wastewater microbiome that might proceed detection of SARS-CoV-2.  The authors claim to observe such changes which could potentially be really useful.  We already know that wastewater …

#COVID-19 Preprint Journal Club: “Longitudinal monitoring of SARS-CoV-2 RNA on high-touch surfaces in a community setting”

A break from wastewater articles!  “Longitudinal monitoring of SARS-CoV-2 RNA on high-touch surfaces in a community setting“. There’s not actually been a ton of articles about fomites recently… this appears less and less likely to be a source of transmission for SARS-CoV-2 although we certainly wouldn’t want to rule it out.  It is, after all, …

#COVID-19 Preprint Journal Club: “Tracking SARS-CoV-2 RNA through the wastewater treatment process”

Getting harder to keep up with all the wastewater articles related to SARS-CoV-2.  It’s becoming more and more common as a method of environmental surveillance for the virus.  And yes, this article, Tracking SARS-CoV-2 RNA through the wastewater treatment process,  came out a month ago… I’ve been too busy working on the pandemic to blog …

#COVID19 Journal Club: “Community Outbreak Investigation of SARS-CoV-2 Transmission Among Bus Riders in Eastern China”

Here’s an article about a superspreader event… which of course falls under the rubric of the microbiology of the built environment, because all these large transmission events happen indoors!  “Community Outbreak Investigation of SARS-CoV-2 Transmission Among Bus Riders in Eastern China” describes… well like it says in the title.  Good evidence for airborne spread here, …

#COVID19 Journal Club “First detection of SARS-CoV-2 RNA in wastewater in North America: A study in Louisiana, USA”

More wastewater surveillance coming out.  Not sure about the title on this one since there’s been a number of publications on wastewater detection of SARS-CoV-2 in the US but maybe this title was correct when they submitted this paper “First detection of SARS-CoV-2 RNA in wastewater in North America: A study in Louisiana, USA“.  Pretty …