They Got it Wrong
The 'experts' have quietly changed their mind on COVID and it's tantamount to admitting they got it all wrong.
Sometimes the most important changes happen with most people not noticing.
That's because the media and newsmakers choose to ignore the change because it contradicts their previous statements and makes them look foolish.
That fear of public humiliation is the only rationale for the lack of promotion of the new public health guidance issued in regard to COVID-19.