Tim Drayton wrote:erolz66 wrote:Tim Drayton wrote: OK, so how do the calculations look if you assume that healthy under-50's whose statistical change of being killed if they contract Covid is so minimal as to be close to zero are not kept under house arrest, but you do everything in your power to protect the groups that are at risk including isolating them if necessary. Can you run that calclulation please?
There is no concept of 'herd immunity' by age group. It could only work if there was total separation of age groups.A ridiculous notion. Herd immunity is about the 'herd' , all of it , hence the name 'herd' immunity. It just makes no sense to talk about 'herd immunity' by age group unless each age group is a separate 'herd'.
Of course I am no expert in the field, but my understanding is if you let the non-vulnerable majority go about their business and the virus rapidly spread among them, with close to zero risk and with the vast majority not experiencing any symptoms at all and those that do suffering something like a cold or the flu, you will rapidly attain the degree of immunity needed to prevent the virus from being able to spread and hence annihilating it. Then, you can bring the risk groups you have been protecting back into society with the virus now gone.
All you are doing , having had the numbers using your preferred IFR guess that you claim is the mainstream consensus thrust in your face, is revert to a position of 'old peoples shortened lives' do not really matter but without the guts to just come out and say that plainly.