World Lyme Day….Dogs may develop Lyme disease from the bite of a blacklegged tick, which may transmit bacteria known as Borrelia burgdorferi. Once ill, dogs can become feverish and lame in one or more joints. They also may exhibit sluggishness, and their lymph nodes may swell. A more serious form of the disease that affects the kidneys often is fatal. The good news? The infection that can cause Lyme disease is preventable.