Yes, dogs can get Lyme disease more than once. Lyme disease is caused by the bacterium Borrelia burgdorferi, which is transmitted through the bite of infected ticks, particularly the black-legged tick (also known as the deer tick). If a dog is exposed to infected ticks after recovering from Lyme disease, they can be reinfected.

To help prevent Lyme disease in your dog, consider the following tips:
1. **Tick Prevention**: Use veterinarian-recommended tick preventatives such as topical treatments, collars, or oral medications. These can significantly reduce the risk of tick bites.
2. **Regular Tick Checks**: After walks or time spent in grassy or wooded areas, check your dog for ticks. Pay special attention to areas like the ears, between toes, and under the collar.
3. **Vaccination**: Discuss with your veterinarian about the Lyme disease vaccine. While it's not 100% effective, it can help reduce the severity of the disease if your dog does become infected.
4. **Maintain a Clean Yard**: Keep your yard well-maintained by mowing the lawn regularly, removing leaf litter, and creating barriers to keep ticks away from your dog.
5. **Know the Signs**: Be aware of the symptoms of Lyme disease, which can include fever, loss of appetite, fatigue, and joint swelling. Early detection and treatment are crucial for a successful recovery.

By taking these preventive measures, you can help protect your dog from Lyme disease and reduce the chances of reinfection.

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Topics covered in this question:

Dog Health Dog Care Veterinary Care Tick Prevention Lyme Disease