Antibodies increase by 6 to 20 times after second Pfizer dose – Sheba

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People who received their second dose of the Pfizer vaccine saw a six to 12 times increase in the amount of antibodies produced to defend against the novel coronavirus, according to preliminary research released Monday by Sheba Medical Center. The results were based on 102 cases of medical personnel vaccinated at the hospital. The results also showed that these people’s antibodies were even higher than those of people who were severely infected with the virus and recovered.