How common are snake bites?
It is estimated that more than 6000 animals are bitten by snakes in Australia each year, mostly (78%) in rural areas. Of these 52% are cats and 44% are dogs with other species making up the remainder. The 6000 animal cases compares with 3000 people who are confirmed or suspected snake bite victims each year. So, especially on a population basis, many more dogs and cats are bitten by snakes than people! Therefore, the work of the Australian Venom Research Unit (AVRU) is vitally important to pet owners!
Which are the most dangerous snakes?
Brown snakes account for three quarters (76%) of all bites, are commonly found throughout mainland Australia, and are the most common cause of snake bite deaths in Australia. In addition, tiger snakes account for 18% of all bites (but over 50% of cases in Victoria and Tasmania) and black snakes account for 6% of cases. However, a wide variety of snakes can affect animals such as the copperhead and death adder.
Click on these links to go to the general section of this site for more information about each of these species:
In Victoria, most snake bites occur in summer whereas in Queensland and New South Wales snake bites are more common in October and November respectively.
Signs of snake bite Animals bitten by a snake can have many different clinical signs that vary with the type of snake, the number of bites and the size of the animal bitten, meaning that diagnosis is often difficult. However, there are a number of signs that frequently occur. |
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In some cases, the animal collapses or vomits shortly after being bitten. The animal may appear to recover but then signs gradually get worse. Dilated (enlarged) pupils are a common early sign, followed by hind leg weakness that may cause the animal to stagger. Eventually the weakness becomes paralysis and the animal cannot walk or even hold its head up. Breathing becomes rapid and shallow then increasingly difficult and this can lead to coma and death, especially if not treated. Other signs that can be seen include trembling, drooling, depression, bleeding from any wounds, blood in the urine or vomit, and pale gums. |
 Photo courtesy R. Brooks |
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For more detail please visit the various species pages: Treatment & Survival Rates |
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A recent survey found that two thirds of bitten animals received antivenom, which together with intravenous fluids, is the prime treatment. Ninety one per cent of cats and 75% of dogs survived with antivenom whereas only 66% of cats and 31% of dogs survived without antivenom. Therefore, treatment by your veterinarian, as early as possible can dramatically increase the chances of a snake bite victim surviving. |
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Contributed by R. Brooks. Last updated: October 2007
