I took an antibody test today which came back as having some antibodies. Could this be from my pfizer vaccines or is it past infection? I had a bad cold about a month ago, slight fever and taste went a bit strange but pcr came back negative. People I work with (science background) said it must be from past infection because pfizer vaccine doesn't create igG and igM antibodies. Is this true?
This is the test I took
www.fishersci.co.uk/gb/en/webinars/webinar-mp-bio-rapid-antibody-test-COVID-19.html