Friday, December 16, 2022
RE: Recent Meningococcal Meningitis B cases in Nova Scotia
Dear Nova Scotia Health Care Providers:
Public Health is currently investigating two cases of invasive meningococcal serogroup B disease, who are both students at Dalhousie University living at the same residence, Shirreff Hall. Both individuals began experiencing symptoms between December 8 and 12. One student is recovering, and one has, unfortunately, died. Both were also co-infected with influenza virus. At this time there is no known connection between the two cases other than living in the same residence, although this is still under investigation.
Public Health has identified all high-risk close contacts of these students. They have all received chemoprophylaxis and will be offered the Meningococcal B vaccine (Bexsero®). Two cases of meningococcal disease with the same serogroup in one location over a short period of time is
considered an institutional outbreak. In response, Public Health will be holding vaccination clinics for the students and staff of Shirreff Hall this weekend.
In addition to this, Public Health is investigating a third non-related case of meningococcal disease in a child in Northern Zone. Serogroup information on this case is pending, and case investigation is ongoing. This case also was co-infected with influenza virus. Close contacts have been identified and provided with chemoprophylaxis.
While the risk to the public is low, health care providers may receive an increase in questions or visits to clinics and emergency departments. If your patient believes they are a high-risk close contact of the infected individual, please instruct him/her/them to contact Public Health at 1-902-481-5824. Your patient will be assessed for exposure and prophylaxis will be recommended if needed.
Preceding viral illnesses may increase the risk of secondary bacterial infections including meningococcus. Given this and the current increase in respiratory illnesses, we encourage all Nova Scotians 6 months or older to also receive their seasonal influenza if not received already.
Please advise patients about the symptoms of invasive meningococcal disease (e.g., changes in level of alertness, fever, headache, stiff neck, rash or sensitivity to light) and if they become symptomatic to seek prompt medical attention. A fact sheet is available at: https:1/novascotia.ca/dhw/cdpc/cdc/documents/Meningococcal-Disease-lnvasive.pdf
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