Emerging viral infections in Australia.

Hendra virus infection should be suspected in someone with close association with horses or bats who presents acutely with pneumonia or encephalitis (potentially after a prolonged incubation period). Australian bat lyssavirus infection should be suspected in a patient with a progressive neurological illness and a history of exposure to a bat. Rabies vaccine and immunoglobulin should be strongly considered after a bite, scratch or mucous membrane exposure to a bat. Japanese encephalitis vaccine should be considered for people intending to reside in or visit endemic areas of southern or eastern Asia for more than 30 days.