New study shows antibody levels not predictive of protection against COVID infection

 https://www.israelnationalnews.com/news/325403

A study recently conducted by researchers from Bar-Ilan University and Ziv Hospital in Tzfat has revealed fascinating findings regarding the significance of antibody levels for protection against infection with COVID-19.

The study, which was published in the Clinical Infectious Diseases journal, followed almost a thousand healthcare workers from Ziv Hospital over an eleven-month period and tested their levels of antibodies against COVID at six different points along the way, from their first dose of COVID vaccine through their first booster shot (the third shot in total).

The study’s authors observed that healthcare workers who contracted COVID before the trial commenced were about half as likely to be reinfected as healthcare workers who received two doses of vaccine were to contract COVID, demonstrating significant natural immunity.