New crown vaccine is useful.
The new coronavirus vaccines marketed in China are mainly adenovirus vector vaccines, inactivated vaccines, and recombinant protein vaccines, and universal vaccination has begun after the vaccine has been clinically proven to be safe and effective.
1. Adenovirus vector vaccine: by selecting adenovirus as the vector, the gene that produces antigenicity of the new coronavirus is implanted into the gene of the adenovirus, so that the adenovirus produces the antigenicity of the new coronavirus, thus achieving the purpose of defense.
2. Inactivated vaccine: Inactivate the virus by physical methods such as heating or chemical methods such as reacting with formaldehyde solution, so that the virus loses the ability to infect the human body, and at the same time can stimulate the human immune system to produce antibodies, so as to achieve the purpose of defense.
3. Recombinant protein vaccine: a part of the antigenic protein of the virus is recombined and cultured in vitro, and then the vaccine is made by purification and addition of adjuvant.
However, the new crown vaccine does not achieve 100% protection rate, after vaccination, you also need to do a good job of personal protection. For example, do not travel to high-risk areas to live, business trips, in and out of public places to wear a mask.