After almost a year of staying indoors, i stepped out of the house to handover certain official documents at one of our branches today. I am fully vaccinated with Pfizer vaccine. Wore double surgical masks. But i had to travel with another colleague in our office car - which was closed (AC on) She too was wearing a mask. Used sanitizers etc... We were in the car for nearly 45 mins. Now that i heard from sources that, this particular colleague was a close contact to another covid positive case. She is asymptomatic right now. Not sure whether she will catch covid or not. She has been fully vaccinated too (Astra Zeneaka) But she apparently shared food & water with that covid patient 2-3 days back without knowing her illness. Only today that 3rd person was ill, tested positive and now this colleague of mine being one of the close contacts was alerted. I feel upset for sharing my car with her today. I'll have to wait 3-4 days to take antigen & then PCR, though no one has asked me to do so. I am scared.