In the experiment, scientists took 10 blood samples from people who had received two doses of Pfizer’s vaccine, 28 days after their second dose, and 12 samples from those who had received two doses of Moderna’s vaccine, 43 days after their second dose. They then compared how well antibodies in the blood samples „neutralised“ the original coronavirus, compared to real-life B.1.1.7 and B.1.351 coronavirus variants.
The sample size was small, and the antibody response is just one aspect of the immune response, so it remains unclear how well the vaccines work against the variant first found in South Africa in real-life.
Zdroj: Study finds Pfizer and Moderna’s shots 10 times less effective against SA’s dominant variant
