What are the odds of reinfection and severe COVID with natural immunity, vaccinated community, hybrid immunity and boosters. This new study from Israel, a preprint of 5.7 million study participants, looked at natural COVID immunity and vaccinated immunity over time in different age groups in Israel. They also looked at hybrid COVID immunity (vaccinated then natural infection and natural infection then vaccination) and 3rd booster injections for vaccinated people. They then looked at different rates of infection in all groups and compared them to see who had the best immunity.
Israeli study: https://www.medrxiv.org/content/10.11…
NEJM study https://www.nejm.org/doi/full/10.1056…
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