Changing America reports:
A new study by the Yale School of Public Health has analyzed data on natural immunity to estimate how often unvaccinated individuals can expect to become reinfected with COVID-19.
The study determined that natural immunity is somewhat short, and in a model where everyone has either been infected with COVID-19 or vaccinated against it, those who are unvaccinated can expect to be reinfected with the coronavirus roughly every 16-17 months.
“Our results are based on average times of waning immunity across multiple infected individuals,” Hayley Hassler, a co-author of the study, said. “Any one of those individuals may experience longer or shorter durations of immunity depending on immune status, cross-immunity, age, and multiple other factors.”
Without Covid-19 jab ‘reinfection may occur every 16 months’ say scientists https://t.co/HS5j3FpVUh
— Guardian Science (@guardianscience) October 19, 2021