Risk Factors for Serogroup B Meningococcal Disease Among College Students

Open Forum Infect Dis. 2023 Dec 2;10(12):ofad607. doi: 10.1093/ofid/ofad607. eCollection 2023 Dec.

Abstract

Background: College students are at increased risk for invasive meningococcal disease, but which students are most at risk is unclear.

Methods: US meningococcal disease cases in persons aged 18-24 years during 2014-2017 were included. Patients were classified as undergraduate students or other persons. Incidence in different student and non-student populations was compared.

Results: During 2014-2017, 229 meningococcal disease cases were reported in persons aged 18-24 years; 120 were in undergraduate students. Serogroup B accounted for 74% of cases in students. Serogroup B disease incidence was 4-fold higher in undergraduate students, 11.8-fold higher among first-year undergraduate students, and 8.6-fold higher among residence hall residents versus non-undergraduates. During outbreaks, students affiliated with Greek life had a 9.8-fold higher risk of disease compared to other students. A significantly higher party school ranking was observed for schools with sporadic or outbreak cases when compared to schools with no cases.

Conclusions: The findings of increased disease risk among first-year students and those living on campus or affiliated with Greek life can inform shared clinical decision-making for serogroup B vaccines to prevent this rare but serious disease. These data also can inform school serogroup B vaccination policies and outbreak response measures.

Keywords: College students; MenB vaccine; Meningococcal disease.