There are two main types of 13-valent pneumonia vaccines currently on the market: imported and domestic. These two types of vaccines differ in the age of applicability and the number of doses to be injected. 1. Imported 13-valent Pneumonia Vaccine: applicable from 6 weeks of age to 15 months of age. Infants can receive three doses of basic immunization at two, four and six months of age, and a fourth booster dose at 12-15 months of age, which completes the whole process of vaccination. 2. Domestic 13-valent pneumonia vaccine: suitable for 6 weeks of age ~ 5 years. 2 ~ 6 months of age: first 3 doses, according to the age of the first dose of vaccination, the interval of each dose is ≥ 1 month or ≥ 2 months; 12 ~ 15 months of age for the fourth dose. 7 ~ 1 month of age: first 2 doses, the interval of two 2 months; 12 ~ 15 months of age for the third dose (and the interval of the second dose of ≥ 2 months). 12 ~ 23 months of age: two doses, the interval of ≥ 2 months. 24 months of age: two doses, the interval of ≥ 1 month; 12 ~ 23 months of age: two doses, the interval of ≥ 2 months; 12 ~ 23 months of age: two doses, the interval of ≥ 2 months. 24 months to 5 years of age: 1 dose. For details of vaccination methods and vaccination recommendations, please visit your local vaccination center.