https://www.abc.net.au/news/2022-03-09/nsw-records-first-japanese-encephalitis-death/100896444

https://www.abc.net.au/news/2022-03-11/jev-pig-farmers-vaccinate-against-japanese-encephalitis/100901444

NSW Health has confirmed a man in his 70s from Griffith who died last month had the Japanese encephalitis virus (JEV).

The man died on February 13, and after post-mortem testing, it was confirmed he had the disease, which is spread by mosquitoes. 

The man was confirmed as the third known case of JEV in NSW, and more people were undergoing testing. 

The virus was first detected in the state last month, and authorities were urging people to protect themselves against mosquito bites.

JEV had never been previously detected in humans in NSW.

Two other cases, a man and a child from different towns in the state's south, were confirmed on Monday.

The virus is potentially fatal for humans but symptoms develop in only 1 per cent of cases.

It has now been detected across four states, in what are the first known cases on the Australian mainland.

The region around the NSW-Victoria border has been identified as an area of concern for health authorities.

Earlier this week a man in his 60s died from JEV in Victoria.