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Three months after the second dose (given 28 days after the first), study participants of Moderna’s covid-19 vaccine demonstrated high levels of antibodies. “This suggests that the vaccine will provide long-lasting immunity,” said the lead researcher.
A new study recently published in the scientific journal “The New England Journal of Medicine” suggests that Moderna’s vaccine, which announced 94.5% effectiveness in fighting SARS-CoV-2, generates greater immunity than the real one. New coronavirus infection.
The research focused on 34 citizens of different ages who received both doses of the vaccine and who, three months later, still had high levels of antibodies. Even participants over 70 years old.
“Very positive news,” said Alicia Widge, a researcher at the National Institute of Health of the United States (which developed the Moderna vaccine), in statements to “El País.”
“All the participants had high levels of antibodies against SARS-CoV-2, three months after the second dose of the vaccine. [que é dada 28 dias após a primeira, o que significa quatro meses de imunidade a partir da primeira dose]. This suggests that the vaccine will provide long-lasting immunity.“noted the lead author of the study.
Moderna’s vaccine is currently in the third phase of testing and no adverse effects have yet been detected. On January 12, the European Medicines Agency will meet to decide on its approval, after evaluating that of Pfizer / BioNTech, on December 29.
At this time, there is still no comparable data on the duration of immunity of the Pfizer vaccine, which has been proven effective at 95%. However, immunologist Uğur Şahin, CEO of BioNtech, hopes to have them soon. “We have seen levels of antibodies similar to those shown by Moderna, but we have not yet published the data. We hope to be able to do so by the end of next week,” he explains to the Spanish newspaper.
“We know that our vaccine generates memory cells, but we also know that antibody levels will drop over time. This means that a third booster dose may be needed a year or two later,” he adds.
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