Immunoglobulin G
Bulgarian Prof. Argirova: Antibody Certificates may soon be Recognized in other Countries
Yesterday's issued green certificates can also be given to people who have not been vaccinated, but after testing show that they have antibodies, for example after a disease that may be asymptomatic.
The certificate will be issued by the National Health Information System, as after vaccination, but will be valid only in Bulgaria.
Another Setback for WHO Mission in Wuhan, Two Members Had Coronavirus Antibodies
Two members of a World Health Organization-led team that arrived on Thursday in China's Wuhan city to investigate the origins of COVID-19 remained behind in Singapore after testing positive for coronavirus antibodies, the global body said.