T-cell exhaustion

Question

With the recent reports of COVID-19 causing T-cell exhaustion, and the comparison to AIDS causing T-cell exhaustion can someone explain what this is and what long term affects it will have on a person/population?

EDIT: [LINK](https://www.medrxiv.org/content/10.1101/2020.02.18.20024364v1) talking about t-cell exhaustion and covid-19

In: Biology

Answer 1

“T-cells” are the parts of your body that fight sickness. They keep you healthy. But sometimes they get tired.