A Sudden Fever
You do know that a fever is the hallmark of COVID-19 but you would also think it would be accompanied by respiratory issues. However, you could have not had those respiratory issues and you could have had the fever spike by itself.
You do know that a fever is the hallmark of COVID-19 but you would also think it would be accompanied by respiratory issues. However, you could have not had those respiratory issues and you could have had the fever spike by itself.