2. The research and development time of vaccine in COVID-19 is relatively short, and the vaccination time in COVID-19 is relatively short. How long will COVID-19 vaccine have to wait? Only a few years later can we give a concrete conclusion. Liang Yaqiong, deputy director of the Immunization Planning Department of Nanjing CDC, said: This data will be constantly updated. If the antibody level drops sharply after monitoring for a period of time, reasonable suggestions on whether to strengthen vaccination will be put forward and decided according to the later observation data.
3. novel coronavirus vaccine: novel coronavirus vaccine (20 19-nCoVvaccine) is a vaccine for novel coronavirus.
On June 24th, 2020, China CDC successfully isolated the first novel coronavirus in China. At 20: 00 on March 16, the recombinant COVID-19 vaccine was allowed to start clinical trials. On April 13, China COVID-19 vaccine entered the phase II clinical trial; On the same day, an expert group composed of more than 20 scientists, doctors, funders and manufacturers from all over the world issued a public declaration, promising to work together to accelerate the research and development of vaccines in COVID-19 under the coordination of the World Health Organization. On June 19, the first COVID-19 mRNA vaccine in China was approved for clinical trial. 654381Oct 8, China signed an agreement with the Global Alliance for Vaccine Immunization and formally joined the "COVID-19 Vaccine Implementation Plan".