Home Science Prior exposure to common cold coronaviruses enhances immune response to SARS-CoV-2

Prior exposure to common cold coronaviruses enhances immune response to SARS-CoV-2

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Researchers have shown that certain immune cells, which are found in people previously exposed to common cold coronaviruses, enhance the body’s immune response to SARS-CoV-2, both during natural infection and following vaccination. The researchers also report that this ‘cross-reactive immunity’ decreases with age. This phenomenon may help to explain why older people are more susceptible to severe disease and why their vaccine-induced immunity is often weaker than that of young people.

Source: ScienceDaily.com