"With Leptospirosis, we are seeing an increased number of cases, which usually, we don't, so that's the reason for recommending the vaccine for those dogs that are risk," said Dr. Lisa Darling with AAWL.
Leptospirosis can be transmitted through urine or water. Cases started in Scottsdale and are reaching Avondale, Gilbert and Fountain Hills.
The symptoms are vomiting, diarrhea, tremors, exhaustion and a fever. Leptospirosis is also highly contagious.