The interval between different vaccinations

Vaccination is a preventive measure taken by humans to avoid contracting some infectious and contagious diseases. It is one of the important means for humans to resist disease invasion. Most vaccines are given during childhood, but different vaccines have different timing requirements. There are certain requirements for the injection of different vaccines. Request different time intervals. Next, let’s take a look at the intervals between different vaccines.

Killed vaccines are made by selecting bacteria, viruses, rickettsia, spirochetes, etc. with good immunogenicity, culturing them artificially, and then killing them by physical or chemical methods. This vaccine loses its ability to reproduce but retains its immunogenicity. After entering the human body, killed vaccines cannot grow and reproduce, and their stimulation on the body is short-lived. To obtain lasting immunity, repeated vaccinations are required. For example, rabies vaccine, diphtheria, pertussis and tetanus vaccine, etc.

Live vaccines are made by artificial directed mutation methods, or by screening out live microorganisms with reduced virulence or essentially non-toxicity from nature to make live vaccines or attenuated live vaccines. Commonly used live vaccines include BCG, sugar pills, measles, mumps/rubella, cholera, rotavirus, Japanese encephalitis, hepatitis A, and chickenpox. After vaccination, the virus has the ability to grow and reproduce in the body, which is close to natural infection and can stimulate the body's lasting immunity to pathogens. Live vaccines require smaller doses and provide longer duration of immunity. The immune effect of live vaccines is better than that of dead vaccines. 1. BCG vaccine, diphtheria, pertussis and tetanus vaccine, polio vaccine and measles vaccine can be administered at the same time. 2. Rubella vaccine, measles vaccine, and mumps vaccine can be administered at the same time, but must be separated from other vaccines by 30 days. 3. In principle, there is no interval between the varicella vaccine and the measles vaccine, but there must be an interval of more than 30 days between the varicella vaccine and the measles vaccine, and more than 15 days between other vaccines. 4. There should be at least 15 days between meningococcal vaccine, Japanese encephalitis vaccine and all other vaccines, and at least 30 days between them and rubella vaccine. 5. Two or more vaccines cannot be administered simultaneously in the same arm within 20 days. 6. It is strictly forbidden to inject epinephrine into children with congenital heart disease. 7. Hepatitis B cannot be administered at the same time as measles. Similar vaccines can be administered at the same time, but in different arms. There is no interval between dead vaccines; there is no interval between live vaccines. Live vaccines should either be administered on the same day or 28 days apart.

Regardless of age, people must follow the vaccination interval requirements introduced above to get vaccinated. In this way, different vaccines can resist different diseases and play a preventive role. At the same time, you should also pay attention to some precautions when getting vaccinated, and strictly follow the requirements of vaccination. Only in this way can you truly make your body healthier.