Chinese health authorities have recently said that an additional third dose of the COVID-19 vaccine may be needed to boost its effectiveness. The announcement was released soon after a doctor in China’s Xi’an city was reportedly infected with the CCP virus after receiving two doses of a Chinese-made COVID-19 vaccine. A virologist who spoke with The Epoch Times believes that the poor quality of the Chinese-made vaccines and the increasing threat posed by the CCP (Chinese Communist Party) virus mutations are causing infections. The unnamed Chinese doctor from Xi’an city, the capital of Shaanxi Province, tested positive for the CCP virus despite getting two doses of the COVID-19 vaccine, Chinese media reported on March 18. The reports did not mention which Chinese-made vaccine the doctor received nor provide additional information about the case. In an interview with China Central Television (CCTV) on March 20, Gao Fu, the director of the Chinese Center …