A local source of immune cells for the central nervous system
https://www.nature.com/articles/d41591-021-00040-6
An Immune Protein Could Prevent Severe COVID-19--if It Is Given at the Right Time - Scientific American
https://www.scientificamerican.com/article/an-immune-protein-could-prevent-severe-covid-19-if-it-is-given-at-the-right-time1/
Covid-19 patients with cancer, HIV, may play a role in incubating variants - The Washington Post
https://www.washingtonpost.com/health/2021/03/11/immunocompromised-patients-covid-variants/
Scientists See Signs of Lasting Immunity to Covid-19, Even After Mild Infections - The New York Times
https://www.nytimes.com/2020/08/16/health/coronavirus-immunity-antibodies.html
Scientists Uncover Biological Signatures of the Worst Covid-19 Cases - The New York Times
https://www.nytimes.com/2020/08/04/health/coronavirus-immune-system.html