In our country, vaccines are generally divided into two categories: the first type of vaccines are vaccines prescribed by the state, which are purchased by the government through public bidding and vaccinated free of charge. It is used for routine immunization, supplementary immunization and emergency vaccination of children. Class II vaccines refer to other vaccines that are voluntarily vaccinated by citizens at their own expense, and are mainly used for vaccinations for people who are not covered by routine immunization. The transportation and storage of all vaccines must be in the cold chain at 2-8°C.

First class vaccine

1. The government provides free to citizens

2. Municipal Health and Family Planning Commission unified procurement and distribution

The second type of vaccine

The first is the unified purchase by the Municipal Center for Disease Control and Prevention, which will be distributed to each district/county disease control center, and then sent to the vaccination clinic;

The second is to purchase from the district/county disease control center, and then distribute it to each vaccination clinic;

Third, the vaccination clinic is directly purchased, but this situation is very rare.

3. Vaccines are divided into the first type vaccine and the second type vaccine. The transportation and storage of all vaccines must be in the cold chain of 2-8℃ to ensure safety and effectiveness. The first type of vaccine refers to the vaccine that the government provides to citizens free of charge, and citizens should be sown in accordance with government regulations.

At present, there are 11 types of first-class vaccines that can be vaccinated for free for school-age children, including BCG vaccine, polio vaccine, hepatitis B vaccine, DPT vaccine, DPT vaccine, measles vaccine, measles vaccine, and group A meningococcal vaccine , A group C group meningococcal vaccine, Japanese encephalitis vaccine, hepatitis A attenuated vaccine.

The second type of vaccine refers to other vaccines that are voluntarily sown by citizens at their own expense. The refined products or imported products of the same type of vaccine belong to the category of self-funded vaccines, mainly including rabies vaccine, rabies immune globulin, hepatitis B immune globulin, and pneumonia vaccine , Varicella vaccine, influenza vaccine, adult leprosy vaccine, meningococcal A+C vaccine, etc. The vaccines involved in this incident are all second-class vaccines.