Washington, United States.
Vaccines against it Covid-19 by Pfizer they can be stored at the usual temperatures that the freezers for pharmaceutical use for a period of two weeks, Said the U.S. Food and Drug Administration (FDA) on Thursday.
This authorization relaxes a prior requirement that demanded que vaccines were stored at temperatures in between -80 to -60 degrees C º.
“The alternative temperature for the transport and storage will help alleviate the burden of acquiring ultra low cold storage equipment for sites vaccination and should help bring the vaccine in more placesSaid Peter Marks, director of the FDA’s Center for Biological Assessment and Research.
Pharmaceutical freezers usually work on some -20 degrees C º.
The measure was taken after that Pfizer submit an application following the results of your research on the vaccine stability a higher temperatures.
the Pfizer vaccine is based on a new technology it uses synthetic molecules of mRNA (messenger ribonucleic acid) they deliver genetic instructions because the human cells cross a part of the coronavirus.
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the mRNA molecules are enclosed in fat particles by protect them and require lower storage measures.
Once thawed, the vials can be stored up five days at a temperature between 2 and 8 degrees Cº. At room temperature they do not last more than hours.