Paedbasic

Arrange the following childhood vaccination milestones in chronological order, from earliest to latest.

Answer

Primary dose at 6 weeks, Primary dose at 10 weeks, Primary dose at 14 weeks, Booster dose at 15–18 months

Explanation

The schedule in the material lists primary doses at 6, 10, and 14 weeks, followed by a booster at 15–18 months. The ordering follows the ages given in the source. **Key takeaway:** The listed primary series precedes the 15–18-month booster.\n\n**Glossary:** **Booster**: a subsequent vaccine dose intended to reinforce protection.

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