1. Show me where Prado said start with a 60 day lockdown...
that conflicts with the abstract and his summary.
2. R0 is based state when all individuals are susceptible.
But... when many people already have immunities the effective R0 of low risk groups would naturally be lower. That is what we need to measure. You need to stop lecturing me with basic shit...you keep lecturing and your lectures are basic shit and not applicable to what I have been saying. I could make a mistake but you have to stop assuming you are correct... I have been way ahead of you.
https://en.wikipedia.org/wiki/Basic_reproduction_number
In
epidemiology, the
basic reproduction number (sometimes called
basic reproductive ratio, or incorrectly
basic reproductive rate, and denoted
R0, pronounced
R nought or
R zero[17]) of an
infection can be thought of as the
expected number of cases directly generated by one case in a population where all individuals are
susceptible to infection.
[18] The definition describes the state where no other individuals are infected or
immunized (naturally or through
vaccination). Some definitions, such as that of the
Australian Department of Health, add absence of "any deliberate intervention in disease transmission".
[19] The basic reproduction number is not to be confused with the
effective reproduction numberR, which is the number of cases generated in the current state of a population, which does not have to be the uninfected state. By definition,
R0 cannot be modified through vaccination campaigns. Also, it is important to note that
R0 is a dimensionless number and not a rate, which would have units of time
[20] like
doubling time.
[21]
The effective R0 of "low risk people" is the same for "high risk people". R0 is the infection rate. Human hosts have the same infection rate. In fact the effective R0 for people with few symptoms many be higher because they will still go around town infecting others while the sick will shelter at home or be in a facility.
Even Pardo outlined the best course of action in his paper is Strategy 2C which is starting with a 60 day lockdown for everyone.