I'm definitely missing a lot of cultural context here... but sudden illnesses like that, or being unable to recover quickly from an illness hits different in a world with covid. Not only do we have to deal with the initial infection, we also have to worry about long covid, and a whole host of chronic illnesses or immune system fuck-ups that are triggered by the infection.
It's only a flu, right? Just "May sickness"? Nothing more. Just the new normal after being employed. You'll recover in a week's time, surely.