Neutrophil: An emerging villain in COVID-19

Author: Shuvasree SenGupta

Editors: Lisa Pinatti, Lihan Xie, and Whit Froehlich


Keeping our immune system functional is important to stay healthy in the time of the COVID-19 (coronavirus disease 2019) pandemic. However, the same immune system is behind some of the worst symptoms of COVID-19, which may seem paradoxical. Components of the immune system, when not regulated properly, can boomerang back and cause harm to our own cells. As such, scientists speculate that some of the fatal complications seen with COVID-19 are because of the aberrant activation of a member of the innate immune cell population, known as neutrophils.

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