Know R0
If it’s <1, the virus disappears.
>1, it continues to spread.
The greater than 1, the greater it spreads.
R0 for SARS-Cov-2 is abt 3.
Precautions such as masks, esstl activities DECREASE R0.
Not herd immunity.
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Good. https://53eig.ht/3fHNBwU ">https://53eig.ht/3fHNBwU&q...
If it’s <1, the virus disappears.
>1, it continues to spread.
The greater than 1, the greater it spreads.
R0 for SARS-Cov-2 is abt 3.
Precautions such as masks, esstl activities DECREASE R0.
Not herd immunity.
Got it?
Good. https://53eig.ht/3fHNBwU ">https://53eig.ht/3fHNBwU&q...
R0 is the # of people an infected person infects.
So, if it’s less than 1, the virus eventually “ dies” out.
It’s abt 3 for Covid meaning each infected person, with or without symptoms, will infect 3 others. 9 more get infected fr those 3. And so on.
Taking precautions ...
So, if it’s less than 1, the virus eventually “ dies” out.
It’s abt 3 for Covid meaning each infected person, with or without symptoms, will infect 3 others. 9 more get infected fr those 3. And so on.
Taking precautions ...
will reduce the # each infected person infects
REDUCING R0.
So, the goal is to reduce R0.
With no vaccine, our alternative is to wear masks, social distance, essential activities only — you know the rest of the list.
REDUCING R0.
So, the goal is to reduce R0.
With no vaccine, our alternative is to wear masks, social distance, essential activities only — you know the rest of the list.
Now, the 10x more mutant strain, G614, is more prevalent.
Think abt
1) the specificity of COVID-19 tests
2) the specificity of antibody tests
Do the current tests detect the mutant?
3) the specificity of the vaccines in clinical trials.
->Duration of this pandemic.
Think abt
1) the specificity of COVID-19 tests
2) the specificity of antibody tests
Do the current tests detect the mutant?
3) the specificity of the vaccines in clinical trials.
->Duration of this pandemic.
Citation for the SARS-CoV-2 mutant virus strain (causes COVID-19) at almost 100% in Houston area.
Molecular Architecture of Early Dissemination and Massive Second Wave of the SARS-CoV-2 Virus in a Major Metropolitan Area
https://www.medrxiv.org/content/10.1101/2020.09.22.20199125v3.full.pdf">https://www.medrxiv.org/content/1...
Molecular Architecture of Early Dissemination and Massive Second Wave of the SARS-CoV-2 Virus in a Major Metropolitan Area
https://www.medrxiv.org/content/10.1101/2020.09.22.20199125v3.full.pdf">https://www.medrxiv.org/content/1...