Dr Yeung Ho Hong 楊浩康 醫生 health-prevention-info

Meningococcal ACWY Vaccine /腦膜炎雙球菌ACWY型疫苗

Dr Yeung Ho Hong ( 楊浩康 醫生 ) 2021-09-10

Meningococcal ACWY Vaccine /腦膜炎雙球菌ACWY型疫苗


Meningococcal infection is caused by meningococcus. Meningococcus is spread through droplets or direct contact with the patient’s respiratory secretions. The incubation period is 2-10 days, and is usually 3-4 days. Meningococcal infection can cause serious illnesses such as meningococcal bacteremia or meningitis. Meningococcaemia is caused by meningococcus which invades the bloodstream. The symptoms include high fever, severe headache, petechiae, shock or even dealth in severe cases. If meningococcus invades the meninges, it will cause meningitis. In the case of severe meningitis, it can cause brain damage or death. Invasive meningococcal infection can also cause arthritis, pneumonia or myocarditis.

Vaccination with can effectively prevent invasive meningococcal disease caused by meningococcus A, C, W-135 and Y strains. Common side effects include pain and redness at the injection site, fatigue, muscle pain, and fever. The meningococcal ACWY vaccine is not included in the " Hong Kong Childhood Immunisation Programme". Parents can consider vaccinating their children with meningococcal ACWY vaccine for protection.