The fact that the first vaccines have produced antibodies indicates that vaccine research has entered a critical step, but there is still a long way to go before the vaccine is successfully developed.
Vaccine research must include at least three irreplaceable components: preclinical research, human clinical trials, and formal promotion and application. Preclinical research includes isolation of virus from patients, preparation of vaccine by large-scale culture of virus strains, testing of vaccine on animal models, and entry of tested vaccine into human clinical trials. The cycle of vaccine development is relatively long, and this process must respect the laws of science and go through a scientific, rigorous and safe research process before it can go from animal testing to human clinical testing, and it is unknown when it will be available for human use.