Everyone is familiar with chickenpox. As an acute infectious disease caused by the herpes zoster virus, chickenpox mostly occurs in spring and winter, and the patient population is mostly concentrated in children aged 1 to 12 years old. Some parents said that it is normal for children to grow chickenpox, and there is no need to get chickenpox vaccine; but some parents worry that if they ignore the chickenpox problem, it will cause a series of complications. So is it necessary to varicella vaccine?

　　Is it necessary to varicella vaccine?

　　Varicella vaccine can stimulate the body to produce immunity against varicella virus and be used to prevent chickenpox. The varicella zoster virus is highly contagious. Humans are the only host and are very easy to spread. There is currently no effective drug treatment. Vaccination with varicella is the only effective way to prevent the disease, especially in the control of varicella outbreaks The popular aspect played a very important role.

　　Vaccinia vaccine has better immunity persistence. A survey in the United States showed that 93% of children and 94% of adults had VZV antibodies after 5 years of immunization, and 87% of adults and 94% of adults had cell-mediated immunity.

　　 After 6 weeks of inoculation, the serum positive conversion rate is greater than 98％, the population over 13 years old is inoculated with 2 doses (with an interval of 6-10 weeks) and the serum positive conversion rate can reach 100％. Within 72 hours of exposure to natural varicella infection, protection can still be achieved through immunization.