<p>Primary Vaccination:</p>

<ul>
	<li>Children 9 through 23 months of age: Two doses, three months apart.</li>
	<li>Individuals 2 through 55 years of age: A single dose.</li>
</ul>

<p>Booster Vaccination:</p>

<ul>
	<li>A single booster dose may be given to individuals 15 through 55 years of age at continued risk for meningococcal disease, if at least 4 years have elapsed since the prior dose.</li>
</ul>