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Hastings and Prince Edward Public Health

Meningococcal B Vaccine (Bexsero) FAQs

The multicomponent meningococcal, 4CMenB, vaccine, Bexsero®, helps to protect children and young adults from an illness called group B invasive meningococcal disease.

What is invasive meningococcal disease?

  • Invasive meningococcal disease (IMD) is a serious contagious infection caused by the bacteria Neisseria meningitidis. There are 13 types, but B is the most common IMD group to affect Canadians. It causes 80% of IMD cases under the age of one year.
  • It can cause swelling of the lining of the brain and spinal cord, known as meningitis, or a serious infection of the blood, known as meningococcal septicemia. It can be fatal.
  • Symptoms start suddenly, from 2 to 10 days after exposure. They include fever, aches, joint pain, severe headache, stiff neck, nausea, vomiting, and a red pin-point rash, followed by drowsiness, confusion, or agitation.
  • It spreads to others through close face-to-face contact with an infected person’s saliva or secretions (fluids) from the nose and throat, e.g. sneezing and coughing, and activities such as kissing and sharing food, drinks, toothbrushes, toys or cigarettes.
  • IMD is most common in children under the age of five and adolescents.
  • It occurs more often in the winter and spring in Canada (temperate climate) and during the dry season in tropical climates, e.g. December to June in sub-Saharan Africa.
  • Early treatment with antibiotics is important.

Who should get the publicly funded (free) Bexsero®?

Publicly funded Bexsero® is available for 

  • children 2 months to 17 years of age with certain medical conditions
  • close contacts of a case of serogroup B IMD or those at risk during an outbreak
  • children from 2 months through 17 years of age with the following high risk conditions:
    • functional or anatomic asplenia
    • complement, properdin, factor D or primary antibody deficiencies
    • cochlear implant recipients (pre / post implant)
    • individuals with acquired complement deficiencies (e.g., receiving eculizumab)
    • individuals with HIV
Age at first dose# of dosesSchedule
2 to 5 months4 doses + booster2 months between doses  Booster at least 12 months after 4th dose
6 to 11 months3 doses + booster2 months between doses  Booster at least 12 months after 3rd dose 
12 months to 10 years2 doses2nd  dose 2 months after 1st  dose
11 to 17 years2 doses2nd  dose 1 month after 1st  dose

Who should not get Bexsero®?

  • Anyone who has had a serious allergic reaction to this vaccine in the past, or to any component of the vaccine:
    • Bexsero® – N. Meningitidis group B fusion protein, produced in E. coli (then inactivated), aluminum hydroxide,  Neissaria heparin binding agent (NHBA), sodium chloride, histidine, sucrose, kanamycin used early on in process and removed – trace level only
      May contain latex (cap of syringe)
  • Anyone with a high fever, moderate to severe illness should wait until they feel well.
  • Pregnant or breastfeeding women should only be vaccinated if it is clearly necessary.

What are the common side effects of Bexsero®?

  • Some people may feel feverish, sore and swollen for a few days where the needle was given and have general muscle aches, headaches or feel tired for a day or two.
  • Tylenol® or ibuprofen may be taken afterwards, as directed, to reduce fever or discomfort.
  • Children under 19 years of age must not be given ASA, Aspirin® or salicylates.

What else do I need to know? 

  • To avoid germs, do not share water bottles or other drinks, food or eating utensils.
  • Meningitis B symptoms occur rapidly and are often misdiagnosed as the flu. 
  • 10% of those infected with Men B can die within 24-48 hours.
  • One in five can suffer long-term disability, such as hearing loss or neurological disorders.
  • Post-secondary students are 5 times more likely to contract Men B, with the highest number of cases in Eastern Canada.
  • Individuals 18 through 23 years of age entering post-secondary studies who are living in a setting such as a dormitory for the first time may receive two doses of Bexsero, at least one month apart.

When should I seek medical attention after immunization?

  • If your child experiences any unusual side effects, seek medical attention and notify us.
  • Go to Emergency at a hospital right away or call 911 if your child has any of the following after immunization:
    • swelling of the face and neck
    • problems breathing
    • hives and itchy, reddened skin

Your Record of Protection

After you receive any immunization, make sure your health care provider updates your personal immunization record. Keep it in a safe place. Please inform us of any immunizations not received here.

4CMenB Vaccine (Bexsero) Fact Sheet printable pdf

Need More Information About Meningococcal B Vaccine (Bexsero) FAQs?

Talk to your health care provider or call our Immunization Program at 613-966-5500 or 1-800-267-2803, ext. 221.

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South East Health Unit

As of Jan. 1, 2025 Hastings Prince Edward Public Health; Kingston, Frontenac and Lennox & Addington Public Health and the Leeds, Grenville and Lanark District Health Unit will merge to form the South East Health Unit.

Partners and members of the public should continue to engage with their local public health offices as usual until otherwise directed.

Efforts are underway to develop branding for the South East Health Unit, which will take several months. In the meantime, you will see logos and other advertising material with Hastings Prince Edward Public Health branding. You may also see some documents using the legal name South East Health Unit.