To vaccinate a pet is to introduce a controlled, adapted version of a virus or bacteria that would otherwise make a pet ill, in an effort to stimulate the immune system to produce antibodies against the disease in question. For dogs and cats, the type of vaccination, route of administration, and longevity of effectiveness can vary depending on the pet's medical needs, the doctor's discretion and county laws and statutes. Rabies vaccinations are required by law in the state of Florida for dogs, cats, and ferrets. Other vaccines offered include the DA2PP Combo (Distemper, Adenovirus type 2, Parainfluenza, Parvovirus), Bordetella (canine cough), and Leptospirosis for dogs. For cats, the FVRCP (Feline Viral Rhinotracheitis, Calicivirus, and Panleukopenia) and Feline Leukemia vaccines are available.