STUDY: MODERNA VACCINE PRODUCES TWICE AS MANY ANTIBODIES AS PFIZER
A study into the immune responses of the two mRNA COVID-19 vaccines found that Moderna’s vaccine created double the amount of antibodies as the Pfizer-BioNTech vaccine.
Researchers analyzed the antibody levels of Belgium health care workers after they received both doses of the vaccines in the study published in the Journal of the American Medical Association on Monday.
Participants included 688 vaccinated with Moderna and 959 who received the Pfizer shots.
Results: Among those who had not been previously infected, the Moderna recipients averaged 2,881 units per milliliter, compared to the Pfizer recipients who counted 1,108 units per milliliter.
The antibody levels in those who received Moderna were higher in infected, uninfected and across age categories.
The researchers said the difference in antibody levels could potentially be attributed to the higher mRNA content within the Moderna vaccine and the longer interval between the initial and second shots in the Moderna series.