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Meningococcal Quadrivalent Conjugate Vaccine

Vaccination is the best protection against meningococcal infections and their complications. Meningitis (infection of the brain lining) and meningococcemia (infection of the blood) are two serious infections caused by meningococcus. There are different serogroups (or types) of meningococcus, among other serogroups A, B, C, Y and W135. This vaccine protects against serogroups A, C, Y and W135.

The vaccine

Vaccination is the best protection against serogroups A, C, Y and W135 meningococcal infections and their complications. The vaccine is recommended for persons with a high risk of infection from meningococcus. It is also recommended for persons travelling to regions where the risk of meningococcal infection is high.

Symptoms after vaccination

Some symptoms may be caused by the vaccine (e.g. redness at the injection site). Other problems may occur by chance and are not related to the vaccine (e.g. cold, gastro, headache).

Meningococcal quadrivalent conjugate vaccine is safe. Most reactions are harmless and do not last long.

Frequency Possible reactions to the vaccine What to do
In most cases
(more than 50% of people)
  • Pain at the injection site
  • Appliquer une compresse humide froide à l'endroit où l'injection a été faite.
  • Utiliser un médicament contre la fièvre ou les malaises au besoin.
  • Consulter un médecin selon la gravité des symptômes.
Very often
(less than 50% of people)
  • Redness and swelling at the infection site
  • Headache, muscle pain, fatigue, discomfort, nausea, pain in joints, diarrhea, loss of appetite, irritability, drowsiness (sleepiness)
(less than 10% of people)
  • Fever, shivering, vomiting, skin rash

We recommend that you stay at the clinic for at least 15 minutes after vaccination because allergic reactions may occur. If an allergic reaction occurs, the symptoms will appear a few minutes after the vaccination. The person giving the vaccine will be able to treat this reaction immediately.

For any questions, contact the person giving the vaccine, or Info-Santé (8-1-1) or your doctor.

To learn more

For more information about the meningococcal quadrivalent conjugate vaccine, you can consult the general fact sheet PDF version.

Back to regular vaccination schedule.