Könnt ihr euch noch an das Versprechen der #Herdenimmunität erinnern?
Wissenschaftler haben Menschen betrachtet, die Anfang 2022 eine #Infektion mit der Variante BA.1-2 hatten. Sie hatten ein 30-fach erhöhtes Risiko an BA.5 zu erkranken.
https://brighterworld.mcmaster.ca/articles/analysis-covid-19-vaccine-boosters-are-the-best-defence-older-adults-shouldnt-rely-on-previous-infection-for-immunity/
https://doi.org/10.1016/j.eclinm.2023.102148
Analysis: COVID-19 vaccine boosters are the best defence: Older adults shouldn’t rely on previous infection for immunity
We still have much to learn about many aspects of COVID-19 — including its lingering health effects and the mechanics of its mutations — but we do know we can’t let our guard down, write Dawn Bowdish and Andrew Costa.

