Scientists at Columbia University in New York screened antibodies from 40 Covid-19 patients and identified 61 types from five individuals that effectively wiped out coronavirus. Among them were nine that displayed “exquisite potency” for neutralising the pathogen.
Tests on cells showed that the antibodies killed off the virus, while experiments with hamsters revealed that an infusion of one of the more potent antibodies protected the animals from disease. “It shut off infectious virus completely in the lung tissue of the hamsters we treated,” said David Ho, a professor of medicine at Columbia who led the research.
“We specifically isolated very potent antibodies that can be mass produced and then administered,” Ho said. “We would assume that these could be used to prevent or treat Sars-Cov-2. We’d be looking to treat early in the course of infection, particularly those at risk of developing severe disease such as the elderly and those with underlying illness.”
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