Lyme disease is caused by bacteria transmitted in a tick bite. The types of tick that carry the bacteria are not native to Australia and they have not been found in Australia.
Researchers are investigating whether Australian ticks can cause Lyme disease or Lyme disease-like symptoms. People bitten by ticks in USA, Europe or Asia can return to Australia with Lyme disease.
Read about Australian investigations into Lyme disease.
What causes Lyme disease?
You can get Lyme disease if you’re bitten by a tick carrying Borrelia burgdorferi bacteria.
Ticks are insect-sized eight-legged animals that can cling onto the skin. They can pierce the skin and inject their saliva, which may contain the bacteria, into the wound to draw blood for food. A tick has to be attached for at least 36 hours before the bacteria can be transmitted.
Lyme disease symptoms
Most people with Lyme disease notice a rash that appears between three and 30 days after a tick bite.
The rash may be tender but it usually isn’t itchy or painful however not everybody with Lyme disease gets it.
Diagnosis and treatment of Lyme disease
Your doctor will examine you and ask you if you’ve been in an area where you may have been bitten by a tick before making a diagnosis.
You may have a blood test to confirm the diagnosis.
Lyme disease prevention
If you’re travelling to an area where ticks are common, especially in spring or summer:
- wear long sleeves, long pants and long socks
- use insect repellent containing DEET
- check your body carefully and regularly.
Remove ticks as soon as possible.
It is important to kill the tick first to prevent more saliva from being forced into the wound. Kill the tick with a product that quickly freezes it, such as a spray used to treat warts. Then gently remove it with tweezers when it is dead. This method will also lower your chances of developing an allergy to ticks. If you are allergic to ticks, you need the tick to be removed by a doctor.
Read more about preventing and treating insect bites.
Last reviewed: April 2017