I thnk the CDC is still reeling from the assaults of the ignorant, savage and seditious Trump Presidency, but to me a lot of the problems here are mostly political, rather than science-based, and that is true for most countries not just the US. In the 1990s I used the CDC's database a lot and it remains a major source of information, so it is tragic to see how bad politics has disrupted what ought to be one of the most reliable US institutions of learning and research.
The question of boosters is a diffcult one -Boris Johnson is to confirm that Boosters will be available to over-50s from December, just as the existing Covid vaccines are to be made available for 12-15 year olds -the December date reflects the anxiety in the UK Government that the coming winter months will see an increase in infections. Also, your second link doesn't, to me, suggest there is a medical/scientific problem with boosters, thus-
""Even in populations with fairly high vaccination rates the unvaccinated are still the major drivers of transmission and are themselves at the highest risk of serious disease," wrote the authors, which also include World Health Organization scientists.
Even if booster shots were shown to lower the risk of serious disease, they said, existing supplies would be better off deployed to unvaccinated corners of the world, rather than boosting vaccinated populations, to head off the development of more variants."
That said, Boris Johnson has no grip on policy -we were going to have Vaccine Passports, now they have been 'delayed', his plan to reform social care turns out to be anything but, linking social care to NHS funding and limiting the overhaul at a time when the 'Winter is Coming' fear seems to be as ominous as it was in Game of Thrones.
If I am offered a boost I will take it, though I would prefer to see existing vaccines and resources extended to those who don't have it, with surplus supplies given free to countries that need it. I don't know what to do about the militants who reject basic, elementary science -to me this is not based on any knowledge of medical science but a fetish for the politics that rejects Government as if it were a sinister organiation determined to take over people's lives, which right now is as likely to be found in Texas as Afghanistan, contradicting the fears expressed by loopy fanatics ike Lin Wood. As for vaccine passports, people need a licence to drive a car, is that an infringement of their liberty?
All round, sober reflection on what is needed, but as noted so many times in the last 18 months, co-ordinated leadership and organization of the kind that seems to be lacking.
Right now it is not the politicians to admire, but the continuing dedication and hard work of health care workers dealing with the reality on the ground 24/7, without whom some of us would not be here.