How many doses are required for the ACYW meningococcal vaccine?

May 14, 2023 Source: Cainiu Health

Dr. Jiang Weimin

Introduction

For routine childhood vaccination, it is recommended that infants aged 2 to 6 months receive the vaccine, typically requiring two doses. The first dose is recommended at 2 months of age, and the second dose is usually administered at 4 months. If a child has not received the ACYW meningococcal vaccine by 4 months of age, it is recommended to complete both doses before 6 months of age.

The ACYW meningococcal vaccine is typically administered in two doses. The detailed analysis is as follows:

The ACYW meningococcal vaccine is designed to prevent diseases caused by Neisseria meningitidis, including meningitis, sepsis, and sporadic epidemic meningococcal meningitis. For routine childhood immunization, the vaccine is recommended for infants aged 2–6 months, usually requiring two doses. The first dose is recommended at 2 months of age, and the second dose is typically given at 4 months of age. If an infant has not received the ACYW meningococcal vaccine before 4 months of age, it is recommended to complete both doses before 6 months of age. If the first dose is administered at 4 months of age, the second dose should be given at least 8 weeks after the first. For adults, the first dose can be administered at any age, and early vaccination is recommended. Individuals traveling to areas with outbreaks or those with special needs may receive a second dose, which should be administered at least 8 weeks after the first dose.

It should be noted that the ACYW meningococcal vaccination schedule should be determined based on a comprehensive assessment of factors such as the recipient's age, vaccination purpose, and immunization history, and must follow medical advice and guidance.

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What should I do if my arm becomes painful, red, swollen, and develops a hard lump after receiving the A+C meningococcal vaccine?

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