May 14, 2021

Pfizer’s vaccine has been shown to be effective against the British strain of COVID-19

The Pfizer / BioNTech vaccine has been shown to be effective against the so-called ‘British strain’ of COVID-19, the Financial Times has advanced. The coronavirus mutation VOC-202012/01 or B.1.17 was identified in England last October from a sample that was collected in September and has since spread significantly over other variants, also by other European countries. Pharmaceuticals were conducting studies to see if the serum was also effective against her. The Pfizer / BioNTech vaccine is the one that is being administered mainly in Spain: we already have 1,107,600 doses, of which 957,314 have been inoculated in patients. We also have 35,700 of Moderna.

Still under investigation, but preliminary studies indicate that this mutation is more contagious because it has a change in the spike of the virus (the ‘spikes’ that sprout from the body) that allow it to better bind to the proteins of human cells. In Spain there are around a hundred confirmed cases of the British strain, which have been sequenced, and there are many others under investigation at the National Center for Microbiology, according to the Minister of Health.

Viruses mutate frequently, and the coronavirus in particular undergoes an average of 1-2 mutations per month (influenza viruses, by comparison, undergo 4-8 mutations per month). Several experts had already advanced that vaccines take this particularity into account. The researcher in genomic sequencing of the Fisabio Fernando González-Candelas foundation explained a few weeks ago to this newspaper that they are prepared for a virus that mutates “continuously”, and that the main problem with these new variants is their effects on the collapse of the health system.


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