Information about wearing facemasks to prevent Covid-19 is becoming confusing…
WHO: Masks don’t prevent Covid-19.
Surgeon Gen.: Not for healthy people.
Health workers: We need more masks!
CDC in March: Not for general public.
CDC in April: Everyone should wear outdoors.
What studies say
“Penetration of cloth masks by particles was almost 97% and medical masks 44%,” according to a 2015 study on influenza-like illnesses.
A 2011 analysis of multiple studies of physical measures for reducing the spread of respiratory viruses showed masks were the best type. They help when the wearer is ill.
Interesting that the same 2011 analysis reports “Antiviral drugs and vaccinations may be insufficient to prevent their spread.” and “there was limited evidence that social distancing was effective”
Carbon Dioxide buildup?
Rebreathing carbon dioxide when using respiratory protective devices can result in fatigue, dizziness, headache and drowsiness, a 2013 study stated. Of course those symptoms are better than getting a virus, but the report goes on to say the topic is “relatively under researched.”
A 2014 study of one-hour use of N95 masks showed minimal increases in heart rate, respirator rate and transcutaneous carbon dioxide and oxygen saturation.
Tips for wearing facemasks from Harmony Lab. (not affiliated with this site)
Cloth face coverings should not be placed on young children under age 2, anyone who has trouble breathing, or is unconscious, incapacitated or otherwise unable to remove the mask without assistance.CDC
Disclaimer: The above is not considered health advice. More debate at Scientific American.
Residents of Orange County in California are set for a showdown with Governor Gavin Newsom who shut down the beaches after he disapproved of last weekend’s gatherings. Read more at the OC Register.
Maybe they need to pay more in property taxes?
Not that there was an insider trading going on but…
FLASHBACK TO FEBRUARY: CEOs quitting in record numbers could signal total stock market collapse. (CCN Markets)
And nothing to see here…
“…to examine the emergence potential (that is, the potential to infect humans) of circulating bat CoVs, we built a chimeric virus encoding a novel, zoonotic CoV spike protein—from the RsSHC014-CoV sequence that was isolated from Chinese horseshoe bats”
A county-by-county look at coronavirus cases in the United States. See more detailed information at USAfacts.org.
“… commonly used tests to diagnose influenza in clinical settings are not highly sensitive and can provide false negative results (i.e. they misdiagnose flu illness as not being flu… only 8.5% of all pneumonia and influenza deaths and only 2.1% of all respiratory and circulatory deaths were influenza-related.”2013 CDC.gov page on influenze tests
UK DOWNGRADED COVID-19
“As of 19 March 2020, COVID-19 is no longer considered to be a high consequence infectious diseases (HCID) in the UK.”(At Gov.uk)
In the UK, a high consequence infectious disease (HCID) is defined according to the following criteria:
- acute infectious disease
- typically has a high case-fatality rate
- may not have effective prophylaxis or treatment
- often difficult to recognise and detect rapidly
- ability to spread in the community and within healthcare settings
- requires an enhanced individual, population and system response to ensure it is managed effectively, efficiently and safely
Something is not right.