Study: You Might Have Some Immunity To COVID-19 Even If You've Never Had It Unlisted Video
People who haven't been exposed to the novel coronavirus COVID-19 could have a certain level of built-in immunity to the pathogen.
CNN reports a new study suggests that T cells reactive to the virus could possibly help reduce the severity of the illness if the person does get COVID-19.
T cells are part of the immune system and help protect the body from infection.
In a sample of 68 healthy adults in Germany who had not been exposed to COVID-19, 35% had T cells in their blood that were reactive to the coronavirus.
According to CNN, the researchers were from various institutions in Germany and the United Kingdom.
They say such reactive T cells were "probably acquired in previous infections with endemic" coronaviruses.
Using this T cell memory from another-yet-similar infection to respond to a new infection is called 'cross-reactivity.'
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