Its been around three months since I developed covid infection. I was tested positive on 8 april and negative on 4 may. What are the chances that I get reinfected because yesterday I was exposed to a person who was coughing...though he was around six feet away from me. Secondly I want go ask that I am having sore throat and when I cough or clear my throat I get some sputum...is it normal cough or it can be covid one since I heard that covid cough is usually dry cough ... Please help and clarify my doubts as I have gone through covid once so I am very anxious