West Nile virus infection – including Kunjin virus

Find out how we define and monitor cases of West Nile/Kunjin virus infection, and where you can learn more about this disease.

About West Nile virus infection

West Nile virus infection (including Kunjin virus) is a disease caused by a flavivirus. These diseases spread to humans via the bite of an infected mosquito. Infected people may have no symptoms, or mild flu-like symptoms. In very rare cases, infection can lead to serious complications such as meningitis and encephalitis.

Disease type:
Vaccination available under NIP:
Notifiable disease:

Prevention, symptoms, diagnosis and treatment

For information about symptoms, diagnosis and treatment, see the Victorian government’s West Nile/Kunjin virus page

Surveillance and reporting

West Nile/Kunjin virus infection is a nationally notifiable disease.

We monitor cases through the National Notifiable Diseases Surveillance System (NNDSS).  

For more on West Nile/Kunjin virus infection in Australia, you can search Communicable Diseases Intelligence

Date last updated:

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