Herd Immunity would seem a dangerous strategy or objective bearing in mind the following:

- Immunity may only last a short time, in common with other Coronaviruses. Re-infection may be less severe, more severe, or not possible. We don't know.

- Infection Fatality Rate is uncertain, but could be as high as 1%.

- Long term health effects are unknown, but for example some evidence suggests permanent lung damage is possible.

Significant areas of the globe have successfully suppressed the virus, and may even be looking towards eradication. Such countries are looking to establish 'travel bubbles' or 'green zones' between them and get back to normal (within their virus free spheres).

For other areas, it may be too late for suppression, or for societal reasons suppression may never have been practicable, in which case herd immunity as an idea could be considered a palliative.