Tang Ka-piu, a Hong Kong politician who said he received five shots of Chinese-made COVID-19 vaccines, tested positive for COVID-19 on Aug. 5.
He had previously taken three shots of China’s Sinovac COVID-19 vaccine and very recently participated in a mixed-vaccine study in which he took two additional shots.
Tang, a member of the Legislative Council of the Federation of Trade Unions, signed up to participate in vaccine clinical research at the University of Hong Kong in June.
The purpose of the study was to analyze the safety and immune response data of three inactivated vaccines at the research stage—Sinopharm’s BIBP and WIBP against the Omicron variant, as well as another vaccine against the wildtype strain….