RT @voxdotcom
"The severity of my patient’s second bout with #Covid_19 suggests that immune responses may not be as robust as we hope," writes Dr. D. Clay Ackerly. https://www.vox.com/2020/7/12/21321653/getting-covid-19-twice-reinfection-antibody-herd-immunity?utm_campaign=vox&utm_content=chorus&utm_medium=social&utm_source=twitter