JEV

Question 1

Which species are dead-end hosts for JEV?

Answer 1

Humans and horses.

Don’t develop high enough viraemia.

Question 2

What other viruses are JEV related to?

Answer 2

Yellow fever
Murray Valley Encephalitis Virus
West Nile Virus (Kunjin strain)

Question 3

True or False: JEV is a vaccine-preventable disease?

Answer 3

True

Question 4

True or False: JEV is the most important vaccine-preventable cause of human encephalitis in Asia

Answer 4

True

1. to 1.0% of infections

Question 5

Were there any JEV pig infections in the years 22-23 or 23-24?

Answer 5

No.

Question 6

What are the clinical signs of JEV in pigs?

Answer 6

• Reproductive signs - mummification, abortions, still births
• Boars - testicular/epididymal infection with swelling, fever, poor semen quality

Sows only affected in particular periods of pregnancy.

Question 7

What are the clinical signs of JEV in horses?

Answer 7

Fever and neurological signs.

Usually recover in 2-3 days but some may day. No horse cases have been identifed in Australia.

Question 8

What is AUSVET Plan?

Question 9

What are some preventative measures for JEV for workers?

Answer 9

Protective clothing, mosquito control, vaccination

Question 10

How are pigs surveilled for JEV?

Answer 10

Oral fluid collection - test for virus and antibodies.

Blood collection is technically difficult.