Why have CDC & WHO been unable to control the spread of COVID-19 Coronavirus disease?
Ironically, the cause of the real problem (roughly 95% of cases) has been know for the last 3 months by scientists …
The real threat is airborne floating aerosols… from talking. Our vocal cords vibrate vigorously when we talk … flipping off 100’s to 10,000’s of tiny tiny fine aerosol droplets (1 um & smaller) … go out our mouths … and float in the air … highly infectious … for at least 3 hours when trapped inside rooms…
Think: COVID-19 infected people, walking around talking … with no symptoms … while their throats are making the PEAK amounts of SARS-CoV-2 virus, during the last 2 days before symptoms.
For comparison …
1 cough = 60 fine high risk droplets
Talking Aloud for 5 minutes Creates Far Far More of the Highest Risk Aerosols:
Soft talking for just 5 minutes => 750 fine aerosol droplets
…. equals => 12 mouth-uncovered coughs
Normal talking for just 5 min. => 1500 fine aerosol droplets
… equals =>25 mouth-uncovered coughs
LOUD talking for 5 min. => 6,000 fine aerosol droplets
…equals => 100 uncovered coughs
Those 750 or 1500 or 6000 fine aerosol droplets float around inside rooms … for over 3 hours … remaining highly infectious the whole 3 hrs.
What Can we Do?
Wear a mask when inside public places… Have conversations without masks when outside, where the wind blows away your fine aerosols from talking (dilution) …
Then consider the special 1 in 50 people
who are … “Super-emitters/Super-Spreaders”
The Super-Spreader people >= spew 15,000 fine aerosols
… equal to 250 uncovered-mouth coughs … in just 5 min of talking.
Think about all those invisible floating droplets … when walking into an OXXO…. or a combi … or any small enclosed space…. because the fine aerosol droplets slowly float, swirl & circulate between 6 meter – 9 meters … filling an OXXO … for the next 3 hours … with the worst, riskiest highly-contagious aerosols … so small that they are inhaled deeply into our throats – slipping around all masks with leaks…
Now do we understand why CDC’s & WHO’s advice to NOT wear masks… is exactly why Coronavirus has spread so quickly in the USA ?
Fortunately, all the facts above have been known by scientists, from 2 years ago to 16 yrs ago, by reading ALL the very good scientific research done on SARS-CoV-1.
Read the details at these websites:
~ Stay well, stay informed, stay safe. ~
The Good Doctor Fry
Dr. Steven Michael Fry
Ph.D. Analytical Chemistry, Aerosol Science, Measurement Science, Public Health & Environment
Read on, MacDuff …
**If you need a mask.. read the comments below.