An eight-year-old Queensland boy who is critically ill with a bat-borne virus remains in an induced coma.

It's only the third confirmed case of the rabies-like Australian Bat Lyssavirus recorded in the country.

The other two victims, both infected in Queensland, died.

A Queensland Health spokeswoman on Monday told AAP the boy is in a critical but stable condition and remains in an induced coma.

Authorities have only said the boy is from north Queensland, but media reports say he's from Cairns and he was bitten or scratched by a bat while on holiday in the Whitsundays about two months ago.

A few weeks ago he developed a brain infection that led to fits.

Queensland Health says extra supplies of a rabies vaccine and immunoglobulin for those exposed to lyssavirus have been sent to some hospitals in the state.

The virus causes paralysis, delirium and convulsions. Death is usually caused by respiratory paralysis.

Of the two known human cases, one became ill several weeks after being bitten by a bat while the other became ill more than two years after a bat bite.

Bat Conservation and Rescue Queensland president Louise Saunders says the chances of catching lyssavirus are minimal as just half a per cent of all bats carry the disease.

She labelled calls to cull bat populations ignorant.

"They are very important to our environment, they are the pollinators of the forest," she told AAP.

Federal MP Bob Katter, who holds the north Queensland seat of Kennedy, last week said it was time to revisit the idea of culling bats.