Not sure the ground glass opacities are any more distinctly covid than the symptoms list. Or if they are associated with covid, if it's the remdesivir and/or intubation that are the culprits. I trust almost nothing anymore that comes from the mouth of a scientist working under a grant or a bureaucrat working for any government. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8071755/ or https://www.sciencedirect.com/topics/medicine-and-dentistry/ground-glass-opacity