Poor Sleep Could Reduce COVID-19 Vaccine Effectiveness
![](https://substackcdn.com/image/fetch/w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fbucketeer-e05bbc84-baa3-437e-9518-adb32be77984.s3.amazonaws.com%2Fpublic%2Fimages%2Fb5f5eafb-8712-4814-a69a-ced9f39cb8c6_5184x3456.jpeg)
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