Quote (Goomshill @ 20 Jan 2022 05:50)
https://www.cdc.gov/mmwr/volumes/71/wr/mm7104e1.htmThe CDC's study into vaccine effectiveness released today showed that natural immunity by exposure to the delta variant had significantly better resistance to further covid infection than being vaccinated. People who were unvaccinated but naturally immune from delta exposure had better immune responses than people who were vaccinated but hadn't caught delta. Which of course, contradicts yet another premise of the national covid strategy, mandates and everything fauci says in public
The numbers were not close, and were significantly diverged. While unvaccinated, unexposed people were obviously the highest category by far, exposed, unvaccinated people were far lower than vaccinated, unexposed people, and there was little difference between vaccinated+exposed and unvaccinated+exposed.
https://i.imgur.com/juIXGmI.png Anyone with common sense could have predicted that natural immunity would be broader and more durable than the one artificially induced by a vaccine which specifically targets the spike protein.
It should be noted, however, that acquiring natural immunity as a vaccinated person is safer than doing it unvaxxed. Still, the concept of letting the young and healthy build up natural immunity is something I would have liked to be considered by public health officials as early as the summer of 2020.
Another caveat is that this study is only looking at Delta. It is (or should have been

) a no brainer that having been infected with a particular strain means that you won't reinfect with the same strain soon thereafter. The current situation is a little different though since the currently dominant variant exhibits significant immune escape. Data on Omicron is very clear that neither natural immunity from a previous infection with a pre-Omicron variant nor vaccination do all that much to prevent infection with Omicron.
It would be interesting to see a similar study, but with regard to the protection against severe disease rather than mere infection. We know that both exposure to previous variants and vaccinations lower the risk of severe disease or death from Omicron, but which of them is stronger in this regard?
This post was edited by Black XistenZ on Jan 20 2022 03:37am