City of Greater Shepparton

Arboviruses

The term arbovirus is derived from; arthropod borne viruses. Worldwide there are over 400 arboviruses distinguishable by serological procedures. In South-eastern Australia we are mainly concerned with 3 viral diseases;

Epidemic Polyarthritis; caused by Ross River virus.  Effects of Ross River virus can be variable ranging from a symptomless condition thru to mild rash, aching muscles and general illness.  Current research suggests that mammals and in particular macropods (kangaroos and wallabies) are the most likely hosts.

Australian Encephalitis; caused by Murray Valley Encephalitis virus and Kunjin virus.  The effect of these viruses can range from mild to severe and sometimes fatal; symptoms include sudden onset of fever; commonly anorexia, headache, vomiting, nausea, diarrhoea and dizziness may also occur.  Brain dysfunction and coma or death may occur in some instances.  Research indicates that mammals such as kangaroos, rabbits and water birds have been identified as hosts for the virus.

Filariasis

A disease caused by nematodes in the blood or tissues of the body.

Dog heartworm; is a parasitic worm that lives in the pulmonary arteries of infected animals such as dogs, cats and foxes.   Dog heartworm can cause heart and lung disease, and death if left untreated.  Heartworm is treatable; however severe infections may cause permanent damage to the animal’s heart and lungs.  Symptoms include; weight loss, coughing, and lack of energy.  Dog heartworm is spread from dog to dog by mosquitoes.