Murray Valley Encephalitis

7m of CPD
The Murray Valley encephalitis virus was first isolated in an epidemic in 1951. Earlier epidemics in 1917 (114 cases), 1918 (67 cases) and 1925 (10 cases) were probably also due to the virus. In 1974, the only Australia-wide outbreak occurred, involving 58 cases of encephalitis and resulting in about 20% of cases dying. Since then, there have been very few cases.

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What is this article about?

People contract the Murray Valley encephalitis virus by being bitten by an infected mosquito. The common banded mosquito, Culex annulirostris, is the usual culprit. You can find this mosquito (or it can find you) throughout Australia. It breeds in freshwater in spring, summer and autumn. It likes surface pools, rivers, natural wetlands and irrigation waters, but also enjoys backyards. It is especially common in the Murray-Darling river basin in summer.


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Meet the educator

Phillip Petersen
Phillip Petersen, BSc, FASM, has operated a writing and editing business for over twenty years. This follows a career as a microbiologist in hospitals and a pathology laboratory for over thirty years, during which he was also involved with the development and implementation of microbiology courses at Queensland University of Technology. He also conducted research on the in vitro study of infection and has had articles published as well as reference books on the diagnosis and management of infectious diseases and on antibiotics. Phillip ranks his greatest achievement as materially assisting several higher degree students and researchers to reach their goals.
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Lucille Nepomuceno
21 May 2021
My knowledge was fully reinforced! Great one!
Chiedza Bwakura
01 Nov 2023
Good learning piece
Jane Richardson
07 Nov 2023
Heather Oliver-Fuller
03 Dec 2023
Registered Nurse
Very informative as coming from New Zealand I had never heard of this
Darren Chesworth
14 Nov 2023
Is was good
Greg Hallam
14 Nov 2023
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Chloe Cain
16 Apr 2022
Short but informative
Hong Fung
29 Oct 2023
Good resource!
Liin Wei
20 Oct 2023
Good information
Karen Doyle
25 Oct 2023
Interesting update
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