Older people who received a second Pfizer injection after twelve weeks produced more antibodies than people who had passed three weeks between injections. This was shown in a study conducted by researchers at the University of Birmingham.
175 people participated. The research has not yet been peer-reviewed and has not yet been published in a scientific journal.
Among those surveyed were over 80s who received the so-called Supporter After twelve weeks, the amount of antibodies was finally 3.5 times higher than their counterparts who received the second injection three weeks later.
“good job”
In the UK, there were initially three weeks between the first and second vaccinations. That period was extended so that we could give more people the first vaccination more quickly. This also happened in the Netherlands; Here the period between the first and the second injection is now six weeks.
“It looks like it worked out really well,” answers vaccine professor Anki Hockredi from the University of Groningen. “Of course you want this to apply to younger people as well. More research is needed to do this, and also to see if the results also apply to other mRNA vaccines.”
The Pfizer vaccine is an mRNA vaccine, but there are also so-called vector vaccines. They work differently. know more? In this video (from January) UMC Amsterdam’s Marjolene Van Egmond explains the difference:
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