From
https://www.nytimes.com/2022/01/11/health/california-omicron...:
> Compared with Delta, Omicron infections were half as likely to send people to the hospital. Out of more than 52,000 Omicron patients identified from electronic medical records of Kaiser Permanente of Southern California, a large health system, the researchers found that not a single patient went on a ventilator during that time.
> Compared with Delta, Omicron cut the risk of hospitalization in half, the study found, and the people who came to the hospital with Omicron stayed for a shorter period. The variant cut hospital stays by more than three days, a reduction of 70 percent compared with Delta.
> Fourteen of the Delta-infected patients died, while only one Omicron patient did.
> “Vaccines are quite helpful,” Dr. Lewnard said. He and his colleagues found that Californians who were vaccinated were 64 to 73 percent less likely to be hospitalized than unvaccinated people.
> Even among unvaccinated people, however, Omicron was less likely to lead to hospitalizations than Delta.
The absolute numbers are hard to ignore. Tens of thousands of patients in the studies referenced. None went on a ventilator. One died.
But when it comes to boosters, we're not even comparing the vaccinated to the unvaccinated. We're comparing the previously "fully vaccinated" to the boosted and asking what real benefit there is to get boosted for people who are not at high risk (i.e. above >70, with multiple comorbidities) and who almost certainly retain meaningful protection from cell-mediated immunity produced as a result of the initial 2-dose series in the face of a variant that a) causes less severe illness generally and b) for which the antibodies our current vaccines produce are far less effective at neutralizing.