8 doctors weighed in:
How effective is the meningococcal vaccine?
8 doctors weighed in

Dr. Marcus Degraw
Pediatrics
6 doctors agree
In brief: 70-85%
Depending upon which vaccine strain you are talking about, a single dose will create a seroresponse (or documented immune response) roughly 70-85% of the time.
When used broadly, this will translate to an 85-100% efficacy in reducing infection rates in kids. Currently, the CDC now recommends a second dose - after the second there is almost 95-100% response with very high titers.

In brief: 70-85%
Depending upon which vaccine strain you are talking about, a single dose will create a seroresponse (or documented immune response) roughly 70-85% of the time.
When used broadly, this will translate to an 85-100% efficacy in reducing infection rates in kids. Currently, the CDC now recommends a second dose - after the second there is almost 95-100% response with very high titers.
Dr. Marcus Degraw
Dr. Marcus Degraw
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Dr. Yash Khanna
Family Medicine
In brief: 90% effective
Most Meningococcal Vaccines are 90% effective

In brief: 90% effective
Most Meningococcal Vaccines are 90% effective
Dr. Yash Khanna
Dr. Yash Khanna
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Dr. Richard Pollard
Anesthesiology
In brief: See below
This vaccine is about 90% effective in preventing menigococcal disease.

In brief: See below
This vaccine is about 90% effective in preventing menigococcal disease.
Dr. Richard Pollard
Dr. Richard Pollard
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