Meningitis B outbreaks: vaccination and risk in university settings

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On this episode of the CMAJ Podcast, Dr. Blair Bigham and Dr. Mojola Omole explore the ongoing public health concern of meningococcal disease, focusing on meningitis B outbreaks in Canadian universities. They are joined by Dr. Cristin Muecke, a medical officer of health in Halifax, and Dr. Savita Rani, a public health specialist at the University of Saskatchewan. The episode also features the personal story of Megan Plamondon, a Queen’s University student who contracted invasive meningococcal disease.

The discussion opens with a look at recent meningitis B outbreaks, including cases at Dalhousie University in 2022 and Queen’s University in 2023. The Halifax outbreak led to a targeted vaccination effort offering publicly funded MenB vaccines to students in congregate living environments, such as dormitories and residences.

Dr. Muecke provides insights into the Halifax outbreak and the public health response that followed. She discusses the complexities of identifying and controlling meningococcal disease in university settings, where asymptomatic carriers of Neisseria meningitidis can unknowingly contribute to the spread of the infection.

Dr. Rani expands on the current state of MenB vaccination, explaining why the vaccine is not included in routine immunization schedules and outlining the challenges of securing broader vaccine coverage across the country. She emphasizes the importance of early detection, given that meningitis can present with nonspecific symptoms which complicates diagnosis.

Megan Plamondon’s story brings a lived experience perspective to the conversation, highlighting the severe impact of meningococcal disease and the critical need for prevention efforts, particularly among students entering congregated living environments for the first time.

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