There are no specific rules on which self-funded vaccinations are mandatory. Self-funded vaccinations generally include Haemophilus influenzae, pneumococcal vaccine, chickenpox vaccine, etc., which are effective in minimizing the chance of contracting the virus after injection. You can consider whether or not to take the injection according to your own situation. 1. Haemophilus influenzae vaccine: The Haemophilus influenzae vaccine is given to prevent infections caused by the bacterium Haemophilus influenzae type B. This bacterial infection can lead to serious and fatal diseases, such as meningitis, septicemia, pneumonia, and so on. 2. Streptococcus pneumoniae vaccine: pneumococcal infection is a common cause of bronchitis, pneumonia, meningitis and otitis media. At present, there are 13-valent pneumococcal conjugate vaccine and 23-valent pneumopolysaccharide vaccine in China. 13-valent pneumococcal conjugate vaccine contains 7 serotypes, covering 23 serotypes that often cause pneumococcal infection. 3. Varicella Vaccine: Varicella attenuated live vaccine is to prevent the acute infectious disease caused by varicella zoster virus, which is easy to spread in crowded places and highly contagious. Vaccination can stimulate the body to produce antibodies to prevent the occurrence of the corresponding infectious diseases, the vaccinated person is an effective protective measure.