The successful development of a new coronavirus pneumonia vaccine will take at least three months. on January 28th, the Hangzhou National Laboratory has isolated three strains of virulent vaccine, the virulent strains of vaccine strains cultivation will take one month, the vaccine strains into vaccine preparations will also need a month and a half of approval time, so it will take at least three months before the vaccine can be produced. Vaccine preparation is a complex process, and the main purpose of the vaccine in the human body is to allow the body to produce neutralizing antibodies, which can neutralize the virus, and when the new coronavirus re-invades the body, the neutralizing antibodies will go to protect the normal cells of the body. Source: Dr. Yurai