Which vaccine does acip recommend for all college freshmen, aged 21 years or younger, living in dormitories, who have not been previously vaccinated?

The answer to this question is: MCV
in this context, MCV refers tomeningococcal conjugate vaccine that is useful in preventing common illnesses caused by the bacteria that cause infections of the fluid and lining around the spinal cord and the brain. The best age to use this vaccine injection is when we start to enter late-teen age period.