In 2026, the introduction of the 20-valent pneumococcal conjugate vaccine (PCV20) into Brazil’s National Immunization Program does not turn the childhood schedule into a sequence made only of PCV20. During the transition, the routine schedule published by the Ministry of Health combines PCV20 and PCV10: the first dose at 2 months is PCV20, the second dose at 4 months is PCV10, and the booster at 12 months is PCV20. Therefore, seeing both names in a child’s vaccine record can be consistent with official guidance and does not, by itself, mean that an error occurred.
This guide explains the 2026 routine childhood schedule and how to check the vaccine record without turning that review into individual medical prescribing. The references are Brazil’s National Vaccination Schedule and the Ministry of Health’s Technical Guide for the Introduction of PCV20 into the National Immunization Program.
What is the routine schedule in the first year?
For routine vaccination during the transition period, the Ministry of Health organizes the primary series and booster as follows:
| Age | Dose | Vaccine indicated in the transition routine |
|---|---|---|
| 2 months | First dose (D1) | PCV20 |
| 4 months | Second dose (D2) | PCV10 |
| 12 months | Booster | PCV20 |
The standard interval between the two doses of the primary series is 60 days. The booster at 12 months should respect a minimum interval of 60 days after D2. In exceptional situations in which the series begins from 6 months of age onward, the guide allows a minimum interval of 30 days between doses of the primary series.
Why can the vaccine record show both PCV20 and PCV10 in the same series?
The transition to PCV20 officially began in June 2026. The guide states that states and municipalities may begin using it as soon as doses become available locally. At the same time, the document provides for the use of remaining PCV10 stocks during the transition.
In routine vaccination, this explains the combination: PCV20 is used for the first dose and the booster, while PCV10 remains scheduled for the second dose of the primary series. The guide also states that PCV20 may be used to complete the series of children who had already started vaccination with PCV10. Reading the vaccine record correctly therefore depends on the child’s age, dates, and dose history, not only on the product name or the number of valences written down.
What if the child started with PCV10 before the change?
The transition guide provides specific rules for children with incomplete series. Between 5 and 10 months of age, for example, a child who already has D1 recorded as PCV10 may receive D2 as PCV20, while respecting the recommended interval. If there is no vaccination history in this age group, the document recommends two doses in the primary series, with D1 as PCV20 and D2 as PCV10, followed by a PCV20 booster at 12 months.
There is also specific guidance for a child who reaches 11 months without a complete primary series. Because the next step changes depending on whether previous doses are documented, this is a situation in which the vaccine record should be taken to the vaccination service so the history can be checked and the appropriate dose determined.
How is catch-up handled after 12 months?
For children from 12 months through 4 years, 11 months, and 29 days, the guide organizes catch-up according to what is already documented:
- Complete primary series (D1 and D2): give one PCV20 booster, observing 60 days after D2.
- Only D1 recorded: give one PCV20 booster, observing 60 days after D1.
- No vaccination history: give a single dose of PCV20.
The document recommends updating delayed schedules as soon as possible through 4 years, 11 months, and 29 days. This does not mean caregivers need to calculate the next injection themselves. The information helps explain why health professionals consider age, number of previous doses, and intervals before updating the record.
How to check the vaccine record during the transition
A practical review can be done in four steps:
- Check the child’s current age. The routine schedule and catch-up rules change by age group.
- Find every recorded pneumococcal dose. Note the date of each administration and, when listed, whether it was PCV10 or PCV20.
- Compare the history with the official sequence. In the transition schedule, the routine first-year sequence is PCV20 at 2 months, PCV10 at 4 months, and a PCV20 booster at 12 months.
- Take the record to a primary care clinic or vaccination service if there is a delay, missing entry, uncertainty about which product was used, or a change in series. The team can check intervals and the full history before indicating the next dose.
If a child received PCV10 before PCV20 was introduced, that should not automatically be interpreted as a “lost” dose. The guide was designed precisely to allow continuity and catch-up during the vaccine transition.
What is routine, and what requires specific assessment?
The rules above describe routine vaccination in the childhood schedule and common catch-up situations during the transition. The guide itself separates this routine from guidance for people with special health conditions. Children whose clinical conditions place them in special vaccination strategies should therefore not have their schedule inferred only from the routine table.
In those cases, the schedule should be confirmed with the health service, which may apply specific guidance for immunobiological services for special situations. Likewise, a missing vaccine card, incomplete records, unusual intervals, or doses received outside the public health system are reasons for a professional review before any decision.
What the 2026 change actually means for caregivers
The central point is straightforward: in 2026, the transition to PCV20 does not require every vaccine record to show only “PCV20.” The routine schedule published by the Ministry of Health was designed to coexist with PCV10 while stocks are being transitioned and while children have earlier dose histories.
For caregivers, the most useful task is to make sure pneumococcal doses are recorded with readable dates, identify possible delays, and take the vaccine record to the vaccination service whenever there is any discrepancy. The published schedule helps explain the process; confirmation of the next dose, especially in delayed series or special situations, should be made by the health team.
Official sources: Brazil’s Ministry of Health National Vaccination Schedule and the 2026 Technical Guide for the Introduction of the 20-Valent Pneumococcal Conjugate Vaccine into the National Immunization Program.
