• Pfizer and Moderna vaccines could create immunity against new strains for years say Spain’s scientists

Following research Spanish scientists are in meetings amid RNA-messenger vaccines against Covid could possibly offer long-lasting immunity, including the SARS-CoV-2 virus.

“The study carried out went very well – its results are very useful,” said Immunologist Dr Matilde Cañelles of Spain’s National Research Council (CSIC).

The sample size was small and did not include participants aged over 65, to compare results along younger adults.

Two RNA-messenger (RNAm) vaccines have been approved, in use in Europe, being the Pfizer-BioNTech and the Moderna.

The AstraZeneca and Janssen are adenovirus types, where a dormant virus is placed in a carrier fluid, to stimulate the immune system into fighting it off.

The Faculty of Medicine at Washington University in San Luis, Missouri and the ICAHN School of Medicine at the Mount Sinai Hospital in New York, with teams led by immunologists Dr Rachel M. Presti and Dr Ali H. Ellebedy, have published the results of their research in Nature magazine.

It concluded that these vaccines induce a robust response in germinal-centre B-cells which ‘allows the generation of solid humoral immunity’.

According to the Navarra Clinical Hospital medical dictionary, the germinal centre is a lymph organ structure where the process of ‘maturing of antibody affinity’ takes place, or a training ground for B-cells to hone their ability to recognise a virus.