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: 
Vectorborne
Vaccination available under NIP: 
No
Notifiable disease: 
Yes

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

Last updated: 
14 June 2022