Scientists from the University Hospital of Lausanne and the Federal Polytechnic School of that Swiss city (EPFL) announced on Tuesday the discovery of a monoclonal antibody capable of neutralizing all variants of covid-19 , including delta.
The scientific finding, published in the specialized journal Cell Reports , has been achieved by isolating lymphocytes from patients with covid-19.
The antibody is “one of the most potent so far identified against the SARS-CoV-2 coronavirus,” EPFL said in a statement.
As he explained, the antibody blocks the spike proteins (which give the virus its characteristic “corona” shape) and thus prevents them from infecting lung cells, which stops the viral replication process and allows the patient’s immune system to eliminate the coronavirus. of the body.
The scientists also assure that the new monoclonal antibody is more durable, since it provides protection for around six months, against three or four weeks for other antibodies.
“This makes it an interesting preventive treatment for unvaccinated individuals at risk, or for vaccinated people who have not been able to produce an immune response,” said the Swiss university statement.
Patients immunocompromised recipients of a transplanted organ or patients of certain cancers they could be protected against coronavirus receiving two or three times a year the injections of naked antibody, experts predicted EPFL.
Clinical trials of a drug based on these antibodies will begin in late 2022.