I just found out my cousin, who we thought had had a stroke since he lost vision and had other neurological issues, was told by the doctors he had two strains of covid. It took seven days for his vision to return and has had an episode of complete paralyses since, while working outside. During this episode, his eyes were open and he could hear people talking to him, but he was unable to either move or respond. Just the flu - I don’t think so.
Prayers for your cousin
N=1 is meaningless.