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An immunologist has found herself infected with Covid-19 despite having received two shots of the Sinovac Covid-19 vaccine.
Dr Prapaporn Pisitkun, from the Division of Allergy Immunology and Rheumatology at Mahidol University s Faculty of Medicine at Ramathibodi Hospital, said although she had been fully vaccinated, antibodies created by the jabs had decreased by about 30% in just two months.
A fortnight after the second injection, she had tested her level of immunity, or NAb (the neutralising antibody that is responsible for defending cells from pathogens), and recorded it at 92.9%. However, just two months later the level of protection afforded by the vaccine had fallen to only 65.7% and that was around the time she tested positive for Covid-19, Dr Prapaporn said. ....

Prapaporn Pisitkun , Sinovac Covid , Division Of Allergy Immunology , Allergy Immunology , Mahidol University , Ramathibodi Hospital , பிரிவு ஆஃப் ஒவ்வாமை நோயெதிர்ப்பு , ஒவ்வாமை நோயெதிர்ப்பு ,