An Instagram post highlighted a headline about a non-peer-reviewed study from Israel that found that unvaccinated people previously infected with SARS-CoV-2 had greater immunity against the delta variant than never-infected people fully vaccinated with Pfizer/BioNTech’s COVID-19 vaccine. But the social media post omitted the study’s other finding that one dose of the vaccine enhanced protection for infection survivors.
Florida health officials have reported a 60% rise in COVID-19 cases, and hospitals are reporting that 95% of COVID-19 patients are not fully vaccinated. But a Facebook post makes the baseless claims that Florida’s numbers are not going up, and that all COVID-19 patients recently admitted to a Palm Beach County hospital had been vaccinated.
Although scientists are still debating what the community, or herd, immunity threshold is for COVID-19, most epidemiologists estimate that between 40% to 70% of a population would need to be vaccinated or have prior exposure to the virus for an outbreak to begin to die out.