Vaccines
As the drugs are under development, vaccine development had also made a
certain progress. Experts from USA and China had cooperated to develop a
vaccine against the new virus. Some articles point out that vaccine
development against SARS-CoV may face many challenges due to mutation of
protein-encoding genes.(Y. Zhou, Yang, Huang, Jiang, & Du, 2019)
The S protein is the main target antigen, and the development of
recombinant vector vaccines, DNA vaccines and subunit vaccines has been
carried out on this basis. Phase I trial was and will be initiated in
China(Mak, 2020; NIH, 2020) and America(Dunn, 2020) respectively on
testing the newly developed recombinant vaccine (China) and RNA vaccine
(America) according to up to date reports.