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There is no doubt that the Corona vaccines have given hope to the whole world as they could put an end to the emerging virus. But the embarrassing question: which is better?
Against this background, a new study released by the US Center for Disease Control and Prevention revealed a surprise on Friday, as it showed Moderna’s Covid-19 vaccine provides longer-term protection against hospitalization. compared to the Pfizer vaccine.
93% effective
Researchers at the center conducted an analysis on around 3,689 adults admitted to hospitals with severe Covid-19 from March 11 to August 15, 2021, which is the period leading up to and includes the spread of the delta mutant, according to AFP . Of these, 12.9% were fully vaccinated with Moderna, 20.0 with Pfizer / Biontech and 3.1% with Johnson & Johnson.
The researchers found that over the entire period, Moderna’s vaccine was 93% effective against hospitalization, Pfizer 88%, and Johnson & Johnson 68%.
(expressive)
The loss of efficacy against hospitalization of the Pfizer vaccine was also evident: it fell from 91% at 14 to 120 days after vaccination, to 77% after more than 120 days after vaccination. In contrast, Moderna fell from 93% to 92% compared to the two periods.
Antibody
In addition, the study also included a separate analysis of the levels of different types of antibodies elicited by the vaccines, taken from 100 volunteers. The Moderna vaccine has also been shown to produce higher levels of antibodies than the Pfizer and Johnson & Johnson vaccines.
A growing body of research indicates the superiority of Moderna’s vaccine over the Pfizer vaccine, including studies by the Centers for Disease Control and Prevention published last week.
(expressive)
The reasons are still not clear, but it may be that the dose levels are higher – 100 micrograms versus 30. It may also be related to the interval between the two doses, as Pfizer is given at three weeks. of intervals against four weeks for Moderna.
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