For years, there has been a long-held belief that acute viral infections like Zika or COVID-19 are directly responsible for neurological damage, but researchers from McMaster University have now discovered that it’s the immune system’s response that is behind it.
The research, published on Feb. 5, 2024, in Nature Communications, was led by Elizabeth Balint, a Ph.D. student at McMaster, and Ali Ashkar, a professor with the Department of Medicine and the Canada Research Chair in Natural Immunity and NK Cell Function.
“We were interested in trying to understand why so many viral infections are associated with neurological diseases,” says Balint. “Our evidence suggests that it’s not the virus itself that causes the damage, but a unique population of T cells, which are part of the immune system, that are actually responsible for the damage.”
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