Herd immunity not allowed
The primary thrust of public health directives has been to keep the population fearful and therefore compliant and vulnerable to infection and in desperate need of a vaccine. In the absence of a vaccine people need to be exposed and infected to activate sufficient antibodies to produce long-term immunity. That is what is called herd immunity.
But by socially distancing and wearing masks, any herd immunity would theoretically be slowed, or delayed indefinitely. Health authorities are talking out of two sides of their mouth. It is possible there will never be a safe and effective coronavirus vaccine. Herd immunity is plan B, but lockdowns and face-masks run counter to the development of herd immunity.
Lockdowns aren't intended to save lives
Johan Giesecke, professor emeritus at the Karolinska Institute in Stockholm says a lockdown only pushes severe cases and deaths into the future, it will not prevent them.
Even should a vaccine be licensed, if a vaccine is to have efficacy (ability to protect against infection and symptoms of fever, shortness of breath, dry cough, or prevent hospitalization and death) – – at least 70% of a population has to be vaccinated to prevent an emerging epidemic and an 80% immunization rate achieved to extinguish an ongoing epidemic (complete return to normal).