White blood cells may play a key role in the body’s reaction to Covid-19

The term “neutrophils” is little known to the general public, but in fact this family of white blood cells may play a key role in the body’s reaction to Covid-19. “Circulating neutrophils in the blood are the first cells to be recruited in the event of viral intrusion into a tissue. These cells from the immune system then leave the bloodstream and enter the infected area – the lung, in the case of a Covid-19 infection,” explains Mireille Laforge, an immunologist at the environnemental Toxicity, Therapeutic Targets, cellular Signaling and Biomarkers laboratory (T3S), who with other scientists from the CNRS, INSERM and Université de Paris has authored an article on this subject in Nature Reviews Immunology.

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