Covid, the English variant has been circulating for months: three hypotheses about the origin – Corriere.it

For the moment There is no evidence that the Sars-CoV-2 variant of the virus can compromise the efficacy of vaccines. me reliability of diagnoses with evidence. But there isControl actions in different countries must be very strict..

In a 13-page document posted on his website, theEcdc, the European Center for Infectious Disease Surveillancewrote the story of the ‘variant presenting multiple mutations seen in the UK’.

Governments are recommended “monitor vaccinated individuals very carefully to identify any ineffectiveness and the onset of infection. Furthermore, the viruses isolated from these cases must be sequential and characterized. ‘

With respect to diagnostic tests Laboratories are advised to consider whether it is preferable to use those that target the Spike protein, the part of the virus that has been shown to have changed. Thus in terms of case interception, the spread of the variant should not have an impact as there are many molecular tests available based on objectives other than Spike.

The document reconstructs the trajectory of this new variant identified in south-east England after a rapid resurgence of cases.

The graph shows the curve of the epidemic in that region that begins to rise in September and rises sharply already in October. ECDC experts confirm that there appears to be no change in terms of the disease: however, the virus has become more adept at the ability to transmit while, from the mutation, it has not become more lethal-aggressive.

Mother Why did the variant arrive in the UK? In fact, the British were very quick in Find out thanks to a sequencing system that is at the forefront of Europe. National Health has a consortium of laboratories that play an important role in depositing Sars-CoV-2 sequences in the world’s largest database, Gisaid. Out of 270,000 sequences, 120,000 are made in the UK.

Finally hypotheses about the origin of the variant.
There are 3.
The first: it was developed in an immunosuppressed patient who, infected, had the infection for a long time before recovering, favoring the accumulation of many small mutations.
The second (less likely for this variant): the virus is went from man to animal and then back to man after being changed, as happened in Denmark with the virus that passed from mink to man.
The third: the variant it is already widespread throughout Europe and London was able to find it first thanks to investigative action.